Heavy Duty Linear Block SGH
linear block SGH 15/20/25/30/35/45/55/65
Fully Interchangeable THK hsr / HIWIN HGH
The DTX-LG SGH international standard heavy duty linear guide block is engineered for compatibility with leading brands such as the HIWIN linear guide block (HGH series), IKO linear carriage, and the LM Guide THK HSR series (including THK HSR 20, HSR 35 THK).
While the SGH block alone does not reach the ultra-high precision of complete linear guide rail & carriage assemblies, it remains a highly reliable interchangeable option. This makes it an excellent solution if you or your customers need to replace square-type rail blocks in existing systems from other manufacturers.The SGH heavy duty linear block provides accuracy up to P-class, with height and width tolerances within 0.05mm and travel accuracy within 21μm over 4 meters. For applications requiring higher precision, the SG series linear guide rail & carriage assemblies are available with SP/UP grades.
Available in sizes 15/20/25/30/35/45/55/65, the SGH linear carriage dimensions match most linear rail and carriage products on the market. For interchangeability, the corresponding guide rail is the SGR series, while the flange type version is the SGW.With its robust performance and compatibility, the SGH is a reliable choice for linear block CNC systems, offering a cost-effective replacement for models such as HIWIN HGH 25, HGH 30 CA HIWIN, or compatible THK HSR rail blocks.
Why DTX-LG linear carriage Block?
- Flexible MOQ
- Competited Price
- High Customization
- Professional Support & Service
- Quality Assurance
- Full Interchangeability
- Good running smoothness
- Significant Cost Advantage
01. CNC Precision Drilling Machine for linear block
Each SGH linear guide block is manufactured in-house with CNC drilling and grinding to ensure accuracy and consistency. With 16 production lines and an annual output of 3,600,000 pieces, DTX-LG guarantees strict quality control, large-scale supply, and reliable delivery worldwide.
02. Ensuring Precision Through Rigorous Quality Testing
To ensure consistent quality, every production batch of linear guide blocks undergoes random sampling inspection before shipment. Our in-house quality control laboratory is equipped with advanced testing instruments, including a salt spray tester for corrosion resistance, a Rockwell hardness tester for surface hardness verification, a metallographic microscope for material structure analysis, a 2D vision measuring system for dimensional accuracy, and a linear measuring instrument for travel precision.
03. Ensuring Cleanliness and Reliability Before Assembly
Each linear guide block undergoes a thorough ultrasonic cleaning process to remove machining residues, fine metal particles, and surface impurities. This is followed by hot air drying to eliminate moisture and prevent corrosion. Only after these cleaning and drying steps are completed does the block proceed to the assembly stage, ensuring that every SGH block maintains a clean, contaminant-free surface for smooth motion and long-term reliability.
04. A Full-Cycle ISO Quality Management System
DTX-LG has obtained multiple ISO certifications and fully implements standardized ISO quality assurance management processes across every stage of production. From raw material inspection and machining to assembly and final testing, each step strictly follows ISO guidelines. This ensures product consistency, traceability, and compliance with international quality standards, reinforcing our commitment to delivering reliable and globally recognized linear guide rail & carriage assemblies.
Questions? You’re covered
The SGH series linear block from DTX-LG is a precision-engineered linear motion component that is fully interchangeable with Hiwin’s HGH series and THK’s HSR series blocks.
01. What is the SGH linear guide carriage?
Yes, our SGH blocks are designed with identical dimensions and mounting interfaces, making them 100% compatible with Hiwin HGH linear guide rails.
02. Can the SGH linear block be used as a direct replacement for Hiwin HGH blocks?
Yes, our SGH series linear rails and blocks are 100% interchangeable with Hiwin HGH series, including sizes likehgh 15 hiwin, hgh 25 ca hiwin, hiwin hgh 20 cac, hiwin hgh 20 cah, hiwin hgh 30 ca, hiwin hgh 30ha, hiwin hgh 45.
03. Are SGH blocks interchangeable with hsr blocks thk?
Absolutely. SGH series linear blocks from DTX-LG are dimensionally and functionally equivalent to THK HSR series blocks, like thk hsr 15, thk hsr 20, thk hsr 25, thk hsr 30, thk hsr 35, thk hsr 55 ……providing a reliable and cost-effective alternative.
04. What materials are used in SGH linear rail and carriage?
DTX-LG’s SGH linear blocks are made from high-grade bearing steel with precision-ground raceways, ensuring durability and smooth motion under high loads.
05. Is the SGH linear guide block suitable for CNC machines?
Yes, SGH linear guides are ideal for CNC applications, offering stable, high-precision motion even under continuous operation.
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