RGH25HA Heavy Duty Roller Guideway for Industrial Automation

The RGH25HA is a high-performance, elongated roller-type linear carriage engineered for the most demanding industrial environments. As part of the heavy-duty RG series, the RGH25HA replaces traditional balls with cylindrical rollers, significantly increasing the contact surface area. This Long Block (HA) configuration is specifically designed to provide superior load distribution and maximum structural rigidity compared to standard length carriages.

With a high assembly square design and a total block length of 114.40 mm, the RGH25HA excels in suppressing vibrations during heavy-cutting operations, making it the ideal choice for high-precision CNC machining centers and heavy-duty gantry systems.

• Superior Load Capacity: The elongated block body (114.40 mm) houses more rollers, offering higher static and dynamic load ratings for massive industrial payloads.

• High Assembly Square Type: Features a total assembly height of 40 mm and a block width of 48 mm, ensuring a robust footprint for stable linear motion.

• Precision Geometry: Optimized for 23 mm wide rails, with a standardized mounting hole pattern (35 x 35 mm) to ensure seamless integration into existing automation frameworks.

• Industrial Compatibility: Fully dimensionally interchangeable with industry-standard 25mm roller series, allowing for a high-performance upgrade without redesigning your current machine base.

To ensure precise selection for your mechanical design, please refer to the coding logic below:

• RG: Roller Type Linear Guideway Series

• H: High Square Type (Top Mounting Design)

• 25: 23mm Nominal Rail Width

• HA: Heavy Load Capacity (Long Carriage Length)

• ZB: High Preload (Zero Clearance for Maximum Stiffness)

• H: High Precision Grade (G5 Accuracy)

  

Our RGH25HA is engineered to be 100% dimensionally interchangeable with industry-standard High-Square Long Block roller guides. It strictly adheres to international standards for mounting hole patterns (35x35mm) and the 40mm assembly height.

• Standard Fit: Precision-matched to HIWIN RG25, THK SRG25, and other premium global brands.

• Drop-in Replacement: Direct integration with zero modifications to your existing CAD designs, rail mounting holes, or machine base plates.

• Extended Load Support: The HA (Long Block) design ensures equivalent or superior rigidity and damping capacity compared to standard-length equivalents.

• 300% Higher Rigidity: The roller-to-rail line contact offers superior structural stability compared to ball-type sliders. This eliminates vibration during heavy-duty milling, directly improving workpiece surface finish.

• Seamless Compatibility: 100% dimensionally interchangeable with HIWIN RG25 series. You can upgrade your machine's performance without modifying existing CAD designs or rail mounting holes.

• Extended Industrial Life: Manufactured from hardened GCr15 bearing steel (HRC 58-62). This ensures exceptional wear resistance and maintains precision even in 24/7 high-intensity manufacturing environments.

• Advanced Dust Protection: Features reinforced double-lip end seals and bottom seals as standard. Effectively prevents metallic debris and coolant ingress, ideal for harsh CNC grinding and milling conditions.

• CNC Machining Centers: The preferred choice for bridge mills, vertical lathes, and gantry milling machines.

• Heavy-Duty Automation: High-load robotic welding cells and heavy-palletizing systems requiring zero-backlash.

• Precision Grinding: Essential for achieving sub-micron surface accuracy through high damping capacity.

• Injection Molding: Robust support for high-load clamping units and precision mold movement.

• Authentic Technical Photos: Every RGH20CA block features professional-grade grinding finish and is treated with high-quality anti-rust oil before vacuum packaging.

• Strict Tolerance Control: 100% full inspection on walking parallelism and preload consistency to meet G5 precision standards.

• Global Logistics: Large inventory maintained for dispatch within 48-72 hours. Supports fast turnaround for urgent maintenance or new project builds.

• Design Support: 3D STEP / CAD files available. Our engineers can assist in cross-referencing models for your BOM optimization.

A: The "HA" designates the Super High Load (Long) version. RGH25HA features a longer block body and more rolling elements compared to the standard RGH25CA. This extended length provides a larger linear contact surface, resulting in significantly higher load capacities and superior moment resistance. It is the ideal choice for applications where maximum structural stiffness and vibration damping are critical.

A: For vertical axis (Z-axis) applications, the RGH25HA roller linear guide offers exceptional stability against overhung loads. The increased length of the HA carriage effectively suppresses the nodding motion often caused by heavy spindles during high-speed milling. By using the RGH25HA with ZB high preload, you ensure zero-clearance and maximum precision, even when the spindle is fully extended or under heavy cutting impact.

A: Yes, our RGH25HA is designed to be 100% dimensionally interchangeable with the HIWIN RG25HA series. All critical dimensions, including assembly height, block width, and mounting hole pitch, adhere to international standards. This allows for a seamless "drop-in" upgrade, enabling you to benefit from our precision-ground roller systems without any modifications to your existing machine base or CAD files.

A: Yes, the RGH25HA is a 1:1 dimensional replacement for the SRG25LA, matching the 40mm assembly height and the 35mm x 35mm mounting hole pattern.