ロス・アジア List of Products and Services

This catalog is the new catalog (2020 edition) of ROSS machine safety solutions. As a company specializing in fluid machine safety, we explain the standards for hydraulic and pneumatic machine safety, the safety requirements of those standards, the process of building machine safety, and case studies on risk assessment and risk reduction methods. Additionally, you can find information on globally recognized safety function types and risk reduction methods, along with our solutions, specifications for each product, and application circuit examples. [Contents (partial)] ■ Safety proposed by ROSS ■ Safety proposed by ROSS ■ Relevant machine safety standards ■ Safety requirements ■ Machine safety construction process *For more details, please refer to the PDF materials or feel free to contact us.

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This is a poppet-type solenoid valve with high durability and high responsiveness. By rapidly turning the poppet solenoid valve ON/OFF, it is possible to intermittently blow air (cooling) and significantly reduce the amount of compressed air used. By accurately controlling the frequency (the number of ON/OFF cycles per second) and the duty ratio (the ratio of ON to OFF) electrically, it is possible to maintain sufficient blowing force required for the application while reducing compressed air consumption by more than 50%. Additionally, our poppet valves are not disposable. We sell internal component sets such as O-rings and pistons, so by replacing worn parts, you can continue to use the main unit. The size of the pulse blow valve is wide-ranging, with options available up to super large diameter (65A)!

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Many manufacturers store and retrieve various substances in containers such as hoppers, but due to the shape of the hopper and the properties of the materials, a clogging issue known as bridging occurs near the outlet. Currently, equipment such as air knockers and air vibrators are used to strike or shake the hopper, but while the noise is loud, the effectiveness is limited, resulting in operators having to regularly (or when a clog occurs) go to the site and hit the hopper with hammers or sticks. AirSweep is a completely new proposal that uses compressed air to fully resolve issues like bridging and rat-holing. Examples of resolved materials: aluminum, coal, copper, diatomaceous earth, gypsum, iron ore, limestone, magnetite, phosphates, shale, soda ash, activated carbon, adipic acid, aluminum chloride, boric acid, chlorine, herbicides, hydrated lime, iron oxide, polyacrylamide, titanium dioxide, zinc, animal feed, brewing grains, cocoa, coffee, corn, wheat, hops, salt, edamame, spices, sugar, starch, acetate, cement, chalk, cork, detergents, fertilizers, fly ash, pharmaceuticals, plastics, polymer resins, wax flakes, wood chips, etc.

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Features & Benefits: • Closed center valve function - Enables complete control of double-acting cylinders (including inching function and load holding function) • Redundant control via position feedback - Can achieve Category 4/PL e compliance when used with appropriate safety controls • External monitoring type - Allows for complete safety control and feedback monitoring of the cylinder control circuit • Intermediate position sensing - For detecting safe closed center positions • ROSS poppet technology - High-speed operation, high reliability, contamination resistance, surface sealing, low friction • Solenoid LED indicator - Assists in troubleshooting

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Content of the scene: A valve with a monitoring device performs 1) fault detection, 2) output of fault signals, and 3) prevention of restart when a failure occurs on one side. In particular, 3) ensures that the valve does not operate even if power is supplied during a fault, thereby ensuring the safety of the operator. With monitoring, the operator is freed from checking for air leaks and can focus on more productive tasks.

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Scene content As usual, the press operation was underway, but one side of the valve was already malfunctioning. The operator continued to operate without noticing the signs of one-sided failure (air leakage from the exhaust port)... When the power to the valve was turned OFF, both valve bodies failed, resulting in none of the valves closing, so the secondary side air could not be exhausted, and the press did not stop. The operator could face a "pinching accident."

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Scene content: Inside the double valve, two valve bodies are repeatedly opening and closing almost simultaneously. When the power to the valve is turned off and one side does not close (failure), the valve body on the functioning side closes, and the secondary side air is exhausted, causing the press to stop. However, the double valve can still operate if power is reapplied even when one side is in a failed state. Air leakage occurs from the valve's exhaust port, but this "failure indication" is difficult to notice.

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Scene content: A solenoid valve (power control element) was installed to ensure safety through a redundant structure and cross-checking (mutual monitoring) in the two channels. Even in a situation where one valve body was broken and could not shut off the hydraulic pressure, the other valve body operated normally to shut off the hydraulic pressure and return it to the tank, allowing the operator to safely complete the mold exchange.

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Content of the scene After conducting a risk assessment of the machinery, the failure of the power control element (cylinder control valve) was deemed a significant risk. It is necessary to introduce products that correspond to the category/performance level that meets these high safety requirements. The introduced valve is a highly reliable, dual-channel redundant valve that ensures power (hydraulic) is reliably cut off even if the hydraulic cylinder control valve fails. In conjunction with the interlock, it cuts off the supply pressure and returns the power (hydraulic) of the moving mold to the tank, allowing the operator to safely perform mold changes.

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Scene content: While a machine operator was opening a door with an interlock to change a mold and was cleaning the mold, the moving mold, which was supposed to stop due to the interlock mechanism, slowly and quietly moved towards him without him noticing. By the time the machine operator realized this, he had already suffered serious injuries, resulting in a part of his body being caught and severed by the mold.

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Scene content The cylinder control valve has been changed to a "double valve." At this time, if the return position of the cylinder is set to the "upper end," even if one side of the double valve fails, the functioning side of the valve body will operate to return the cylinder to the set position. By doubling the pneumatic energy control (double valve system) and using an optical safety device, we can avoid accidents involving workers being caught.

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Scene content: The operator was unable to set the workpiece properly due to carelessness. There is an optical safety device, so the machine should stop even if the neighboring operator adjusts the workpiece by hand... The 'valve' controls the rise and fall of the pneumatic cylinder. If the valve fails, even if the safety device operates, the air cannot be switched, and the cylinder will not stop.

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Scene content: A machine maintenance technician performing regular machine maintenance during the Golden Week. Following company rules, they search for the residual pressure relief valve to shut off all power energy to the machine, cut off the supply air, and begin exhausting the residual pressure air in the piping. With a typical ball valve, it takes much longer than expected to exhaust all the residual pressure air in the piping. If one approaches the machine with the mindset of "well, as long as it's mostly out, it's fine," the compressed air that is still present may suddenly cause the cylinder to move.

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Scene content: A malfunction has occurred in the manufacturing of a certain product. It is necessary to immediately check the condition of the machinery, and to do so, all power energy that drives the machinery must be shut off. I received instructions to respond urgently. Shortly after joining the company, I learned which valve is the shut-off exhaust valve during training, but I don't remember... The general three-way valve and the shut-off exhaust valve look similar; which one should I shut off?

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This document introduces the "Labor Safety and Health Act," which serves as the foundation for protecting the workplace environment. The "Labor Safety and Health Act," established in 1972, aims to ensure the safety and health of workers in the workplace and promote the formation of a comfortable work environment by implementing comprehensive and planned measures to prevent occupational accidents. This includes establishing hazard prevention standards, clarifying responsibility systems, and promoting voluntary activities to prevent labor accidents in conjunction with the Labor Standards Act. Additionally, it includes information on the "Labor Accident Prevention Plan," which outlines the key areas the government focuses on to reduce occupational accidents. [Contents] ■ About the "Labor Safety and Health Act" ■ About the "Labor Accident Prevention Plan" *For more details, please refer to the PDF document or feel free to contact us.

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Among the four items that determine the Performance Level (PL) of ISO 13849-1, there is the category (Categories). It is divided into five levels: B, 1, 2, 3, and 4, according to the specified architecture, with the required safety functions becoming stricter at each level. This is a simplified (informal) method to understand the safety levels of the specified architecture. In this document, we will convey a simple way to understand the surface aspects of this safety category using airplanes. [Contents] ■ Category B ■ Category 1 ■ Category 2 ■ Category 3 ■ Category 4 *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces various features of world-class monitored double valves. The control valves installed in press machines at primarily metal pressing factories must have a safe mechanism, as they are responsible for the ON/OFF operation of the press machines. We offer a range of double valves that boast world-class safety performance. It is also possible to install monitors on existing double valves, so please feel free to consult us. [Contents] ■ Why are monitored double valves safe? ■ Improvement of cost performance and consideration for the environment *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the relationship between product reliability and MTTF. MTTF (Mean Time To Failure) is commonly used as an indicator to understand the lifespan of a product. If the MTTF of a product is known, one can grasp the average lifespan of that product. Additionally, while utilizing MTTF as one of the indicators, it is important to be aware that theoretically, there is approximately a 63% probability of failure occurring before reaching the MTTF. [Contents] ■ Reliability indicating the probability of the product operating ■ The relationship between MTTF and reliability ■ Reference URL *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces MTTF (Mean Time to Failure), which represents the lifespan of a product. Since MTTF is used for products that cannot be repaired, it has the same meaning as the so-called average lifespan. Generally, the larger the MTTF value, the longer the product can be used stably over time. [Contents] ■ What is MTTF, the indicator of product lifespan? ■ MTBF is used for repairable products ■ Common issues with MTTF and MTBF: the discrepancy between theoretical values and actual experience ■ Reference URL *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces specific methods and points of caution for conducting risk assessments in the workplace and during operations. "Risk assessment," which refers to the process of identifying, clarifying, and evaluating risks present in the field, is extremely important for the operation of machinery and systems. To achieve a truly safe workplace, it is necessary to conduct risk assessments based on extensive knowledge and the latest information. [Contents] ■ What is risk assessment? Check the methods and points of caution - The necessity of risk assessment - How to conduct a risk assessment - Points of caution for risk assessment ■ High risk! Risk assessment of control valves *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces single point lockout as an effective means to achieve both safety and cost reduction. Single point lockout consolidates multiple lockout points, which often span several locations, into one, allowing all machines to be stopped with a single lockout/tagout. With this method, lockout/tagout can be completed with minimal time and effort, preventing workers from skipping the process. We encourage you to consider implementing this to enhance safety and efficiency in machine operations. [Contents] ■ Lockout/tagout to prevent human error ■ Single point lockout to further enhance safety efficiently ■ Reference sites *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the important topic of "residual pressure exhaust" for ensuring worker safety and efficient maintenance, along with examples. Residual pressure can pose risks such as parts being blown off, workers tripping, and hazardous materials being ejected. To ensure worker safety, it is essential not only to stop the pressure supply but also to thoroughly exhaust residual pressure. [Contents] ■ Unexpected accidents that can occur due to residual pressure ■ Residual pressure exhaust valves that help prevent accidents ■ Do not let your guard down even when the machine is stopped; ensure residual pressure exhaust ■ Reference sites *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the role of air blow in factories, its relationship with electricity, and the "pulse blow" method, which is expected to significantly improve efficiency. While air blow contributes to product quality improvement, did you know that it actually consumes a large amount of electricity during operation? By reviewing and improving air blow systems, you can efficiently reduce the costs associated with electricity consumption. Additionally, this can lead to energy savings and enhanced product quality. For the smooth operation of your factory, we encourage you to consider the introduction of pulse blow. 【Contents】 ■ Essential for product manufacturing! The role of air blow and its relationship with electricity ■ Also contributes to product quality improvement! The key points are "pressure" and "timing" - Reduction of air consumption - Improvement of blowing power by delivering intermittent impacts *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the "monitor-equipped double valve" as an example of enhancing safety management standards. The monitor attached to the double valve has the function of detecting malfunctions and preventing restarts. If the press machine operates while malfunctioning, there is a risk of accidents; however, the monitor can prevent accidents by cutting off the electrical and pneumatic circuits within the double valve. Our company offers a wide range of products that meet global standards, so if you have any concerns about safety, please feel free to consult us. [Contents] ■ The changing awareness of safety management in Japan ■ Comparison of safety management between the United States, Europe, and Japan ■ "Monitor-equipped double valve" that guarantees high safety *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces how double valves with monitors ensure safety compared to conventional single valves and double valves without monitors. In the control valves of press machines, by introducing double valves with monitors, accidents that cannot be prevented by workers alone can be avoided, ensuring high safety. With our double valves, monitors can be retrofitted, so if you are using double valves without monitors, please consider upgrading to the safer option with monitors. [Contents] ■ Differences between single valves and double valves without monitors during machine failures - ON failure - OFF failure ■ Differences between without monitor and with monitor *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the system of international standards such as ISO standards and IEC standards. As international safety standards for machinery and systems, there are ISO standards and IEC standards. These two standards target different fields; in the industrial sector, ISO standards pertain to mechanical systems, while IEC standards relate to electrical systems. Additionally, ISO/IEC Guide 51 divides ISO and IEC standards into three levels, allowing for a combination that can accommodate various products. [Contents] ■ International standards: ISO standards and IEC standards ■ Three standards in ISO/IEC Guide 51 - A standards - B standards ■ Reference URL *For more details, please refer to the PDF document or feel free to contact us.

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This document introduces the management of machine safety along with the "safety categories," which are closely related to machine control systems. Safety categories are important indicators for ensuring safety through machine control. By implementing and operating machines with high safety categories, it is possible to create a workplace that does not rely on human safety management. [Contents] ■ Overview of "safety categories" that assess how safe a machine is - Safety Category 1 - Safety Category 2 - Safety Category 3 - Safety Category 4 ■ Reference Sites *For more details, please refer to the materials on our company website or feel free to contact us. https://rossasia.co.jp/column/

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This document introduces examples of disaster costs arising from occupational accidents. When an occupational accident occurs, there are certainly losses in terms of costs, but it can also lead to various issues such as a decline in corporate image, employee turnover, and decreased retention rates. Safety management to prevent accidents is related to various benefits for the company, so it is essential to pay careful attention and not neglect it. [Contents] ■ Direct costs paid to the victims themselves ■ Indirect costs, which are often larger than direct costs ■ Reference URL *For more details, please refer to the PDF document or feel free to contact us.

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The "HBB Series" is a redundant 3/2 valve system for external control, designed to meet the needs and requirements for safe hydraulic shutdown and tank return in machines equipped with hydraulic control. By introducing a hydraulic double valve, not only is machine safety improved, but hydraulic safety solutions are standardized, simplifying complex circuit designs. The test port included in the double valve allows for quicker troubleshooting and reduction of machine downtime, enabling improved operational efficiency and cost savings. 【Features】 ■ Shuts off hydraulic supply pressure and returns secondary side pressure to the tank ■ Equipped with a relief valve on the inlet side ■ Maximum flow rate is 50 gpm (189 l/min) *For more details, please refer to the PDF document or feel free to contact us.

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We would like to introduce our hydraulic shut-off and load-holding safety valve, the 'HBH Series'. In the event of a loss of supply pressure and/or power, it stops and holds the movement of the cylinder. By introducing a hydraulic double valve, we not only improve machine safety but also standardize hydraulic safety solutions, simplifying complex circuit designs. The test port included in the double valve allows for quicker troubleshooting and reduction of machine downtime, enabling improved operational efficiency and cost savings. 【Features】 ■ Maximum flow rate is 145 gal/min (549 l/min) ■ Two body sizes available (D52, D32) ■ Port sizes are 1 1/2” and 2”, Code 62 Flange *For more details, please refer to the PDF document or feel free to contact us.

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The RSe series can be used for the following two types of applications by changing the base. (3/2) == The RSe series double valve is a redundant monitoring 3/2 valve. It is designed to meet the requirements necessary for safe air supply and exhaust applications in pneumatic control devices. (5/2) == The RSe series double valve is a redundant monitoring 5/2 valve. It is designed to meet the requirements necessary for safe cylinder control applications in pneumatic control devices.

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The M35 series valves are designed for safe and redundant valve operation with external monitoring. The valves are configured in a redundant, 3/2, poppet specification and feature the comprehensive functionality of pilot-operated single solenoid, spring return valves. Each single valve in the M35 series is equipped with a solid-state pressure sensor. By monitoring both of these sensors during the operation and non-operation of the M35 valve, a diagnostic range of 99% is achieved. The monitoring of these sensors is conducted by an external monitoring system.

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1. Energy Isolation (Residual Pressure Treatment) 〇 Background and Purpose - Preventing accidents caused by residual pressure during maintenance ⇒ Safety against misoperation and unintended activation - Ensuring reliable energy isolation during emergency stops ⇒ Safety coordinated with power shutdown 〇 Related Standards - The U.S. OSHA "29CFR1910.147" stipulates energy isolation and ensures safety during maintenance through the following measures: ☆ Isolate power sources (electricity, pneumatic, hydraulic, etc.) ☆ Lock Out: Locking ☆ Tag Out: Clearly indicating the status with tags. ☆ Systematizing using double valves. 2. Prevention of Ejection 〇 Background and Purpose - After releasing pressure in the pneumatic system, during the process of re-supplying pressure, the phenomenon of cylinder ejection may occur, leading to accidents or damage to equipment. 3. Fall Prevention 〇 Background and Purpose - During maintenance and emergency stops, while pneumatic energy isolation and residual pressure treatment are performed, there can be problematic cases. In fall prevention for pneumatic cylinder lifting devices, especially when heavy objects or sheet metal fall, it is required to consider the safety of workers and prevent equipment damage.

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ROSS provides a range of products specialized in safety, such as "L-O-X," "EEZ-ON," "P.O. Check," and "Double Valve," along with application circuit technology for constructing pneumatic systems using these devices. When designing machinery, it is crucial to implement inherently safe design strategies that anticipate mistakes and failures. A valuable tool in this process is risk assessment. This book explains pneumatic safety in machine safety. 【Table of Contents】 ■ Chapter 1 Safety of Control - It doesn’t end with just electrical wiring. ■ Chapter 2 Lockout/Tagout (LOTO) and Energy Isolation ■ Chapter 3 ANSI Z244 - Monitored Power Systems ■ Chapter 4 Risk Assessment and Pneumatic Systems ■ Chapter 5 Q&A * Technical pamphlets are currently being offered! * For more details, please visit our website to view the materials or feel free to contact us. https://rossasia.co.jp/column/

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ROSS manufactures and sells a variety of pneumatic control devices with connection diameters ranging from 1/8 to 2-1/2 inches, totaling approximately 5,000 types. Since its founding in 1920, the company has leveraged its extensive experience to continuously develop new products, demonstrating its leadership as a global manufacturer of pneumatic equipment. ROSS valves are used in various industries around the world, including steel, machinery casting, aluminum, and glass. 【Flow Rate】 ○ Inlet Pressure = 6.7 bar (100 psig) ○ Pressure Drop = 0.69 bar (10 psig) ○ Air Temperature = 20℃ ○ Relative Humidity = 36% For more details, please contact us or download the catalog.

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ROSS provides a range of products specialized in safety, such as "L-O-X," "EEZ-ON," "P.O. Check," and "Double Valve," as well as application circuit technologies for building pneumatic systems using these devices. When designing machinery, it is essential to implement inherently safe design strategies that account for mistakes and failures. An effective tool in this process is risk assessment. At Ross, we identify hazards through risk assessment and determine the control categories for safety measures. We then configure the control system with corresponding devices. 【Features】 [DM2 C/E Series Double Valve] ○ Self-contained dynamic monitoring system ○ Equipped with status indicators ○ Compliance with standards ○ High-speed response and large exhaust capacity ○ Reliable poppet structure resistant to contamination For more details, please contact us or download the catalog.

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The "27/21 Series" is a line-mounted poppet valve designed for stable operation in harsh environments, high durability, and large flow rates. It not only responds quickly but also maintains a stable response time over an extended period. Additionally, ROSS poppet valves open and close rapidly. This is the result of a valve body design where the areas of the intake poppet, exhaust poppet, and piston poppet are calculated to achieve a good balance between excellent sealing and strong switching force. 【Features】 ○ Wide operating temperature range ○ Fast response and stable switching operation ○ Abundant options ○ Maintenance and repairable For more details, please contact us or download the catalog.

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The "Cross Flow Series Double Valve Double" is a current model from ROSS that exhibits minimal decrease in exhaust response time not only during normal operation but also in the event of a failure in one side of the valve body. ROSS's double valve is a normally closed double-acting three-way solenoid valve that incorporates two valve bodies operating in synchronization. It offers a variety of monitoring/sensor methods, allowing users to choose the method that best fits the country/region and user requirements. It is also possible to add monitoring to existing valves. 【Features】 ○ Excellent responsiveness ○ Abundant monitoring/sensor methods ○ Series configuration and piping methods ○ Repairable ○ Monitoring function For more details, please contact us or download the catalog.

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One important feature of the "Double Valve" is that it has a duplex (dual mechanism) structure. This valve incorporates two independent 3/2 normally closed three-way valves into a single common body. Each of these two main valve bodies is operated by a dedicated 3/2 normally closed pilot valve. When both pilot valves are energized simultaneously, the two main valve bodies operate at the same time. The "Double Valve" is much safer than a single valve because the likelihood of both valve bodies malfunctioning simultaneously during the same cycle is extremely low. 【Product Lineup】 ○ With EP sensor ○ Without EP sensor ○ With pressure switch (PS) sensor For more details, please contact us or download the catalog.

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One of the important features of the ROSS double valve is that it has a duplex (dual mechanism) design. The ROSS double valve incorporates two independent 3/2 normally closed three-way valves into a single common body. Each of these two valve bodies is operated by its own dedicated 3/2 normally closed pilot valve. When both pilot valves are energized simultaneously, both main valve bodies operate at the same time. The probability of both valve bodies malfunctioning simultaneously in the same cycle is extremely low, ensuring higher safety compared to single valves. Additionally, this product is certified by BG at the highest safety level, Performance Level (PL) 'E'.

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The device is installed at the air entry point of each pneumatic circuit, allowing for the instant exhaust of residual pressure during maintenance or in the event of a malfunction. After the work is completed, the operator removes the padlock with the key they possess to restore the air pressure. (To prevent malfunction) The LOX valve with a soft start (anti-ejection function) gradually increases the downstream air pressure while fully opening during restart, preventing driving devices such as cylinders from suddenly starting to move.

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