Website Renewal! Celebrating 122 Years, when it comes to dry vacuum pumps and rotary blowers, think of Unosawa Iron Works.

Energy-saving and maintenance-free! Compact air-cooled dry vacuum pump for clean processes.

The "KTS type" is a lightweight and compact air-cooled dry vacuum pump. Due to its durable roots design, it has a long maintenance cycle and can also exhaust water vapor. It is ideal for non-corrosive gas applications that require a clean vacuum with high reliability and no oil back-diffusion. 【Features】 ○ Clean vacuum ○ Air-cooled ○ Lightweight and compact ○ Strong against water vapor and mist ○ Low noise and low vibration For more details, please contact us or download the catalog.

• Air compressors, blowers and pumps

Multi-purpose series! Rotary blowers developed based on extensive experience and achievements.

The ARJ type is a rotary blower (Roots blower) that incorporates a three-lobe rotor and brings together the technology of Unosawa Kogyo Co., Ltd. with the aim of achieving high performance, low noise, and low vibration. This series is highly standardized and can be widely used from low pressure to high pressure and from low flow rates to high flow rates. It also accommodates special gases, low-temperature fluids, and high-temperature fluids. 【Features】 ○ High reliability ○ Support for special specifications ○ Selection of optimal shaft sealing structure ○ Support for special materials and surface treatments ○ Support for high-pressure specifications For more details, please contact us or download the catalog.

• Ventilation and smoke exhaust equipment

Extremely robust against condensate! Vertical dry vacuum pump for chemical processes.

The "TRV Series" is a versatile dry vacuum pump (Roots vacuum pump) uniquely developed as a vacuum pump that is strong against condensable gases. The gas flow path is arranged to flow from the top to the bottom in a Down-Flow manner, allowing mist and liquids condensed inside the pump, which are drawn in with the gas, to easily flow down to the discharge port and be expelled or collected under atmospheric pressure. Therefore, it is an extremely robust pump against the inflow of mist and condensate from gases. In addition to the standard FC material, corrosion-resistant materials are also available for selection. 【Features】 ○ Strong against liquids ○ Energy-saving and high-performance design ○ Low temperature rise ○ Capable of drawing high-temperature gases ○ Small installation footprint For more details, please contact us or download the catalog.

• Piping and insulation

Ideal for the suction of condensable gases! General-purpose dry vacuum pump for chemical processes.

The "TRM Series" is a general-purpose dry vacuum pump (Roots vacuum pump) with many years of experience and numerous achievements. It can operate efficiently and stably at a consistent temperature thanks to an intermediate cooler. Additionally, it is capable of recovering condensed liquids such as solvents and is suitable for suctioning condensable gases in processes like vacuum drying, distillation, and degassing. The dry vacuum pump can cover a wide range of pumping speeds from approximately 2m³/min to 35m³/min, and it can also accommodate special specifications made from corrosion-resistant materials such as stainless steel. 【Features】 ○ Wide operating range ○ Completely dry ○ No water contamination ○ Long-term continuous operation For more details, please contact us or download the catalog.

• Ventilation and smoke exhaust equipment

Many achievements in various shaft seals such as mechanical seals and dry gas seals!

The ARJ type is a rotary blower (Roots blower) that incorporates a three-lobe rotor and combines the technology of Unosawa Iron Works Co., Ltd. to achieve high performance, low noise, and low vibration. This series is highly standardized and can be widely used from low pressure to high pressure and from small airflow to large airflow. It also accommodates special gases, low-temperature fluids, and high-temperature fluids. 【Features】 ○ High reliability ○ Support for special specifications ○ Selection of optimal shaft sealing structure ○ Support for special materials and surface treatments ○ Support for high-pressure specifications For more details, please contact us or download the catalog.

• Water Treatment Plant

To customers considering the introduction of vehicle detection sensors for parking lot construction, design, or management: Are you facing any challenges with current issues or selecting the right sensors for parking management? Hotron offers free materials that explain how to utilize vehicle detection sensors and the benefits of their introduction! ▽ Here is the lineup of materials ◉ Vehicle Detection Sensor Basic Guide This guide focuses on the challenges and solutions in parking lot operations, introducing the overview of vehicle detection sensors. ◉ Key Points for Introducing Vehicle Detection Sensors This material discusses the benefits of introduction based on installation locations and specific challenges. ◉ Case Studies of Vehicle Detection Sensor Implementation This document presents the challenges before implementation and the results after introduction. For more details, please download from our website and check it out. https://www.hotron.co.jp/download/

The "HM-S6" is an embedded park sensor that detects vehicles through changes in magnetic flux and responds to various situations from passing to stationary vehicles. It can be used for the opening and closing of input doors at waste treatment plants, as well as for gates that vehicles pass through and outdoor parking applications. It can also be installed on rebar and steel plates. 【Features】 ■ Resistant to the effects of natural environments such as rain, snow, temperature changes, and geomagnetism ■ Protection rating IP68 reduces the risk of water ingress ■ Ten times the load capacity compared to conventional embedded park sensors (based on our comparison) ■ Can distinguish between vehicles even when they pass continuously ■ Can be installed on rebar and steel plates *For more details, please refer to the PDF document or feel free to contact us.

Initially, we received a consultation regarding the renewal of the corporate website, but as we progressed, it became a topic of discussion to also review the recruitment site, leading us to advance both sites simultaneously. Among these, the recruitment site was given a higher priority, and we proceeded with the project by first launching this site. To enhance the recruitment information, we not only planned and conducted interviews with senior employees but also managed the entire production process, including photography, interviews, and writing.

Based on practical experience in support companies and business companies, SBS Marketing Co., Ltd. provides consulting services related to marketing, sales promotion, and customer acquisition mainly in the BtoB (business-to-business) sector. On May 14, 2026 (Thursday), we published the "Notice of Content Gift List Page Update 20." We are pleased to introduce the updated "Useful for Business! Downloadable Content" page with 9 new additions! (Page Overview: Excerpts) ■ Added 1 content on 'Strategy and Tactics,' which is fundamental to marketing! ■ Added 2 contents on 'Behavioral Psychology Techniques,' which can be a shortcut to business success! ■ Added 4 contents on 'Personnel Evaluation and Management,' which are also important in marketing organizations! ■ You won't regret knowing this! Added 2 contents on 'Trivia in the Marketing World!' ▼ For more details, please visit this page. https://sbsmarketing.co.jp/blog/notice-of-content-gift-list-page-update20-2026-05/

At a cabaret club located in Tokyo, we have introduced our diffusers to create a fragrant atmosphere within the floor. Because it is a special space that colors the nightlife, we pay attention not only to the interior design and lighting but also to the "scent of the space." The Majesta Fragrance diffuser rental service spreads high-quality scents throughout the store, enhancing the first impression of customers who visit. We create an exquisite space that makes them want to come back again. Many people might think, "Diffusers seem expensive," but with Majesta Fragrance, it is possible to introduce them at a reasonable price starting from 4,400 yen per month. Our service has received great acclaim for store branding and as a solution for odors from tobacco and alcohol. For those who want to "try it out to see if it matches the store's atmosphere," Majesta Fragrance offers a free trial installation. You can experience it in your store before considering a purchase. If you are interested in scenting your store or office and space branding, please feel free to contact us.