鉱研工業 List of Products and Services

The MG-20AFV-S is a type that has modified the layout of the popular grout pump MG-20 series and shortened its overall length. This has improved space efficiency during transportation and site arrangement. The inverter mount is removable, making maintenance of the motor section easier.

• pump
• Air compressors, blowers and pumps

The drill rod attachment and detachment machine "Eagle Grip No. 2" is a device that minimizes human involvement in the attachment and detachment of drill rods during boring excavation work to the utmost limit. In double-tube drilling, which is mainstream in boring excavation, the weight can exceed 130 kg depending on the combination, making manual handling difficult, dangerous, and exhausting. KOKEN's Eagle Grip series has successfully reduced human involvement in this drill rod attachment and detachment work to the minimum. During rod extension work, tasks can be completed in equal or less time compared to manual work, resulting in minimal fatigue for the rod operator. 【Features】 ■ NETIS registration number: KT-230018-A ■ With a load capacity of 250 kg, it easily allows for the attachment and detachment of even the heaviest rod sets among standard double-tube drilling rods. *For more details, please download the PDF or feel free to contact us.

• Material handling systems and equipment

The rod attachment and detachment during boring operations can be performed via wireless remote control. The rod handling device RHS-2, which allows for safe operation without human intervention, replaces the traditional manual labor for rod attachment and detachment. This model is a high-power type capable of gripping a double pipe combination of the P216 outer rod and the P165 inner rod. It has now been registered with the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system NETIS (Registration Number: KT-230018A).

• Earth retaining wall/foundation reinforcement

The drill rod attachment and detachment machine "Eagle Claw No. 2" is a device that significantly reduces human involvement in the process of attaching and detaching drill rods during boring excavation work. While double-tube drilling with drill rods has become mainstream in boring excavation, certain combinations can exceed 130 kg, making manual handling difficult, dangerous, and exhausting. KOKEN's Eagle Claw series has successfully minimized human involvement in this drill rod attachment and detachment process. During rod extension operations, tasks can be completed in equal or less time than manual work, resulting in minimal fatigue for the rod operator. 【Features】 ■ NETIS registration number: KT-230018-A ■ With a load capacity of 250 kg, it easily handles the heaviest rod sets among standard double-tube drilling rods. *For more details, please download the PDF or feel free to contact us.

• Earth retaining wall/foundation reinforcement

This is a multi-drill machine designed to handle various perforation situations. It features remote-controlled operation for movement, and a compact body size is achieved by using a retractable controller for excavation work. Additionally, it is equipped with a standard penetration test device that complies with JIS standards. Standard penetration tests can be conducted with the push of a button. The need for the installation of a rig, which was essential in conventional standard penetration tests, has been eliminated, achieving labor and energy savings.

• Drilling Machine

The rod attachment and detachment during the boring operation can be performed via wireless remote control. The rod handling device RHS-2, which allows for safe operation without human intervention, replaces the traditional manual labor for rod attachment and detachment. This model is a high-power type capable of gripping a double pipe combination of the P216 outer rod and the P165 inner rod. It has now been registered with the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system NETIS (Registration Number: KT-230018A).

• Earth retaining wall/foundation reinforcement

The rod attachment and detachment during boring operations can be performed via wireless remote control. The rod handling device RHS-1B "Wadatsukami No. 1" allows for safe operation without human intervention, replacing the traditional manual labor for rod attachment and detachment. This model is a compact type that can grip a double pipe combination of the P165 outer rod and the P120 inner rod. It has now been registered with the Ministry of Land, Infrastructure, Transport and Tourism's new technology information provision system NETIS (Registration Number: KT-230018).

• Earth retaining wall/foundation reinforcement

We would like to introduce the "Deep Groundwater Utilization System" handled by Koken Kogyo. After implementation, it is possible to reduce annual water utility costs by 20-30%. Moreover, it can provide a stable supply even in the event of a disaster or when the water supply is cut off. This system incorporates various measures to protect deep groundwater from contaminated surface layers and water. 【Benefits of Implementation】 ■ Securing Lifelines - Ensuring a water source during earthquakes, droughts, and water outages ■ Reduction in Water Utility Costs - Benefits of a 20-30% reduction *For more details, please refer to the related links or feel free to contact us.

• Water treatment technology and systems

The "Multi-Directional Dynamic Penetration Test of Rock Mass Using RPD" is a dynamic penetration testing method that allows for simultaneous measurement of the continuous impact penetration resistance (P value) in horizontal and inclined directions of rock mass, as well as the collection of core samples, utilizing a rotary percussion drill. Only the test specifications using a medium-sized RPD or large RPD with a PS-WL (Percussion Wireline Sampler) at the drilling tip can collect core samples while measuring the P value simultaneously. Additionally, it can be applied to unconsolidated ground such as cohesive soils, sands, and gravel, as well as cement-treated ground. 【Features】 ■ The P value has a good correlation with conventional sounding test results such as N values and unconfined compressive strength (qu), making it useful as an indicator for understanding continuous changes in soil hardness and softness, as well as estimating soil physical properties such as strength characteristics. ■ The P value can be determined from the penetration time required for the drilling tip to penetrate the ground to any desired depth, along with the RPD's impact, rotation, and feed hydraulic pressure (measured by the control panel's indicators) at that time. *For more details, please refer to the PDF document or feel free to contact us.

• Geological Survey

The "Big Man Series" is a large-diameter rock drilling machine developed as a groundbreaking raised drill. It demonstrates exceptional power across various strata, from soft rock to hard rock. Its unique mechanism and dynamic performance are widely utilized for applications such as foundation piles for structures and landslides, as well as large-diameter drilling for wells. 【Features】 ■ Highly efficient drilling ■ Wide range of rotation ■ Easy and efficient rod handling ■ Operation can also be done via remote control ■ Developed as a revolutionary raised drill ■ Blind drilling is also possible *For more details, please refer to the PDF materials or feel free to contact us.

• Ground foundation construction method

The "Aroad Drill Forward Exploration System" is a percussion wireline sampling method that has achieved safe construction using the NATM method. Thanks to the rapid drilling capability of the Aroad Drill, the construction time for boring has been significantly reduced. The Aroad Drill and wireline sampler have been integrated into a single system, allowing for the acquisition of information on faults, geology, and groundwater in the face ahead, even in challenging strata, in a short amount of time. 【Features】 ■ The rotary percussion wireline sampling system significantly improves the core sample collection rate. ■ The dual-tube drilling system enables boring in unconsolidated layers that were previously considered difficult. *For more details, please refer to the PDF materials or feel free to contact us.

• Ground foundation construction method

The RPD-75 series has received a lot of praise for its reliability, high power, and ease of use. The RPD-75SHF "Gekisen" has been designed to be even easier to use and is equipped with many new features. It adopts a lift-type guide cell, allowing for more flexible adjustment of the drilling point. Additionally, it uses a closed transition star-delta starting method, enabling the use of lower-rated generators.

• Drilling Machine

We have enhanced the popular RPD-45H2. The hydraulic rod clamp has been changed to a free type, and it now supports unified pieces (P57 to P133) and can also accommodate slipping due to rod wear.

• Drilling Machine

The RPD-75SL-H3-FC has been modified to a free type hydraulic rod clamp, addressing oil leaks from the conventional cylinder section and unifying the pieces (P57 to P146), as well as being capable of handling slipping due to rod wear.

• Drilling Machine

We have enhanced the popular RPD-75SL-H2. The hydraulic rod clamp has been changed to a free type, addressing oil leaks from the conventional cylinder section, unifying the pieces (P57 to P146), and enabling compatibility with rod wear-related slipping. Additionally, in addition to movement using traveling rollers with single pipes, we have equipped the main machine's slide base with a jack cylinder, allowing lateral movement even without single pipes.

• Drilling Machine

The RPD-100NKS is a new model in the "Aroad Drill" series of high-power skid-mounted full hydraulic rotary percussion drills. It shares a swivel with our most widely used products, the RPD-160C/180C, allowing the use of rods of the same diameter. In large-diameter anchor construction, for example, using the crawler-mounted RPD-180C at the lower part of the slope and this RPD-100NKS on the scaffolding above can further improve efficiency in large-scale anchor construction.

• Drilling Machine

The KOKEN fully automatic portable large-capacity plant series KMP(A)-VM1800W, which has received great acclaim. The familiar touch panel control board remains unchanged, while the lift step has been changed from a ladder style to a stair style. The step depth is 30 centimeters, and due to its open design, even individuals with larger foot sizes can safely ascend and descend. Additionally, the steps can be replaced individually, allowing for adjustments in orientation based on the conditions of the work site.

• Foundation construction machinery

The PG-150V "Jet Spray" has been upgraded from previous KOKEN plunger pumps to accommodate high-capacity, high-pressure continuous discharge. Additionally, the valve box can be removed independently, significantly reducing the effort required for cleaning.

• Foundation construction machinery

The "Grout Pump MG-60FV-THS 'Seiryuu'" is the largest capacity piston pump in our general-purpose grout pump series. It is a space-saving model that is more than 1.5 meters shorter in total length than our conventional MG-40, significantly increasing the flexibility of placement on construction sites. Additionally, with the newly designed large dual-chamber, it has greatly reduced pulsation compared to our previous MG pump series.

• Foundation construction machinery

The "MMP-10A Series" is a mixing plant that simultaneously achieves high-performance automation and ultra-compact design. By simply setting the mixing ratio or the weight of each material, it can produce high-quality injection liquids with fully automated operation, allowing for significant labor savings. There are three operation modes to choose from: continuous patch automatic operation, single patch automatic operation, and manual operation via button control, which eliminates waste of materials during the work process. 【Features】 ■ Significant labor savings possible ■ Eliminates material waste and facilitates cleaning ■ Reduces labor for cement input ■ Achieves accurate measurement and improved mixing efficiency ■ Contributes to labor savings in data management *For more details, please refer to the PDF document or feel free to contact us.

• others

The "BS-2.5AN" is a mini silo compatible with 1-ton flexible containers that allows for fully automatic supply of bentonite. It enables high-quality construction while maintaining functionality, with considerations for safety and simplicity. The silo is equipped with dedicated handrails on the roof for use. Additionally, the handrails have been reinforced with the assumption that safety harnesses will be attached. 【Features】 ■ Automatic supply function ■ Vibrator function ■ Empty level sensor function ■ Labor-saving construction ■ Standard safety measures included *For more details, please refer to the PDF document or feel free to contact us.

• others

The "KMP(A)-VM1000-5" is a model aimed at the mid-range of existing products, featuring a medium-sized plant that integrates a cement silo. The cement silo, mixer, and agitator can be collectively controlled via a control panel mounted on the machine. Additionally, we have incorporated convenient and safety equipment based on customer needs as much as possible. 【Features】 ■ Built-in cement silo ■ Model aimed at the mid-range of existing products ■ Maximum mixing capacity of 800L, liquid production capacity of 15m3/h (when W/C=100%) ■ Incorporation of convenient and safety equipment based on customer needs as much as possible ■ Outlet designed for easy cleaning to avoid clogging *For more details, please refer to the PDF materials or feel free to contact us.

• others

The "FSGT-150C" is a fully hydraulic rotary vibro drill equipped with a newly developed vibration head "V-150-NTH," achieving significant improvements in drilling rates in gravel layers. With the newly developed rod attachment and detachment system, the process has been automated, allowing for operation by a single person and greatly reducing the risk of accidents. The drill can move autonomously with the rods for 100m drilling already mounted, resulting in a smaller construction area and enabling efficient relocation of the drilling position. 【Features】 ■ Equipped with an automatic rod attachment and detachment device ■ Incorporates the newly developed vibration head "V-150-NTH" ■ Achieves significant improvements in drilling rates in gravel layers ■ Can be operated by a single person ■ Greatly reduces the risk of accidents *For more details, please refer to the PDF document or feel free to contact us.

• Drilling Machine

The "RPD-60R3-SP1" is a fully hydraulic rotary percussion drill equipped with a new dual free clamp, allowing it to flexibly accommodate different rod diameters. Developed as a lightweight (1.6t), compact, and multi-purpose machine, it can operate in a vertical position, making it suitable not only for anchoring but also for well drilling and even for drainage boring with a 4m diameter liner. Additionally, the switching between high and low speeds of the drill head rotation can be controlled from the control stand, enhancing safety. 【Features】 ■ Newly equipped with a dual free clamp ■ Flexibly accommodates different rod diameters ■ Improved safety ■ Equipped with a high-performance drill head model "KD-550" ■ Delivers a maximum torque of 6.1 kN-m and an impact energy of 500 J *For more details, please refer to the PDF document or feel free to contact us.

• Drilling Machine

The "RPD-75SL-R2-DFC" is a rotary percussion drill equipped with a dedicated drill head that enhances torque based on the high-performance general-purpose drill head model "KD-550B." It primarily targets the needs of anchor construction methods and has been developed by combining a high-torque drill head suitable for large diameters with a lightweight frame, allowing for easy handling on slopes and enabling high-speed drilling for small to medium diameter anchors. Equipped with a free clamp/breaker and a horizontal sliding base, it allows for smooth attachment, detachment, and positioning of the rods. 【Features】 ■ Achieves a high-level balance between power and lightweight design ■ Significantly improves safety and efficiency during operation ■ Hydraulic clamp/rod breaker compatible with large diameter rods ■ Equipped with a 500mm horizontal sliding base for fine adjustments of drilling points ■ Dedicated drill head that realizes higher torque compared to the conventional RPD-75 series *For more details, please refer to the PDF document or feel free to contact us.

• Drilling Machine

The RPD-220 is a fully hydraulic rotary percussion drill equipped with a high-performance dedicated drill head model "KD-1800." It delivers a maximum pulling force of 152 kN with high torque and an impact energy of 1100 J, allowing for drilling regardless of the hardness or softness of the geological layers. With centrally arranged controls, it enables reliable operation, and it is equipped with a sliding base that allows for fine adjustments of the drilling point, moving 400 mm both vertically and horizontally. 【Features】 ■ Equipped with a high-performance dedicated drill head model "KD-1800" ■ Delivers a maximum pulling force of 152 kN with high torque and 1100 J of impact energy ■ Capable of drilling regardless of the hardness or softness of geological layers ■ Reliable operation with centrally arranged controls ■ Hydraulic clamp/rod breaker compatible with large-diameter rods *For more details, please refer to the PDF document or feel free to contact us.

• Drilling Machine

The RPD-180C rotary percussion drill is equipped with an engine that has been replaced with one compliant with the fourth stage exhaust gas regulations (Tier 4 Final). This model is well-received for its powerful drilling capability, which delivers strong impact on rotary feed and high-efficiency operations through a double-tube method. At the same time, it has achieved a power upgrade, enhancing its adaptability to various strata and construction methods more than ever before.

• Tunnel construction
• Foundation construction machinery
• Ground improvement

The new grout pump "MG-40FV-THSR" is a model that has been restructured based on the well-established MG-40FV inverter pump, aiming to minimize the installation area. Despite being part of the large-capacity MG-40 series, it reduces the occupied space on construction sites and scaffolding by arranging the unit in a vertical position, making it suitable for construction sites and scaffolding where the installation of large-capacity pumps was previously difficult due to space constraints.

• Tunnel construction
• cement
• Ground improvement

The touch panel and valve operations can be set and controlled remotely, further reducing work time. Since the same operations as the main unit's control panel can be performed with the remote control device, it is expected to lead to various advancements, such as reducing on-site workload and shortening construction periods, as operators of the construction machinery can control the plant's settings and operations.

• Foundation construction machinery

Adopting a touch panel system for measurement and mixing control makes setting operations easy. Additionally, its high performance combined with a simple and lightweight design allows for easy installation and reduces working time.

• Foundation construction machinery
• Ground foundation construction method

This is a new compact self-propelled model of the rotary percussion drill from Koken Kogyo, the leading manufacturer in the field. It is equipped with the new dedicated drill head KD-450B, achieving both compactness and high power. The Aro Junior 40 is a self-propelled rotary percussion drill that can be used in locations where working with large machines is difficult.

• Foundation construction machinery
• Drilling Machine

Since its establishment, with the motto of pioneering spirit, Koken will continue to move forward by adding the three keywords of "health," "environment," and "safety."

• Bridge Construction
• Ground improvement
• Rock drills, demolition machines, and excavators