Linear Guide Rail
Linear Guide Rail Manufacturer & Supplier — Baili Guide Rail
Baili Guide Rail is a professional linear guide rail manufacturer based in Lishui, Zhejiang, China. We produce high-precision linear guide rails ground to ±0.005mm German standards, fully compatible with THK and HIWIN specifications. Our product range covers standard, miniature, and heavy-duty series for CNC machine tools, industrial robots, automation systems, and more. With a monthly capacity of 100,000 sets and standard delivery in 7–15 days, we support both bulk orders and single-unit sampling. ISO and CE certified, with 20+ years of industry expertise. Request a free quote today — response within 24 hours.
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What Is a Linear Guide Rail?
A linear guide rail (also called a linear motion rail or linear slide rail) is a precision mechanical component that enables smooth, low-friction linear motion along a defined axis. It consists of a hardened steel rail and one or more recirculating ball or roller sliders, providing high rigidity and load capacity in axial, radial, and moment directions simultaneously. Linear guide rails are fundamental to modern CNC machine tools, industrial robots, semiconductor equipment, and high-speed automation systems, where positional accuracy and motion repeatability are critical.
Advantages of Baili Linear Guide Rails
German-Standard Precision at ±0.005mm
Each rail is precision-ground to a positional accuracy of ±0.005mm, meeting German DIN standards. This ensures consistent repeatability across high-cycle applications where dimensional drift cannot be tolerated.
Direct Compatibility with THK & HIWIN
Our linear guide rails are dimensionally interchangeable with THK HGR, HIWIN HGR, and other major brands. Upgrading or replacing existing rails requires no mechanical modification — a direct drop-in fit.
Full Range from Miniature to Heavy-Duty
From MGN7 miniature rails for precision instruments to wide-flange heavy-duty series for machining centers, Baili covers rail widths from 7mm to 65mm to match diverse load and space requirements.
100,000 Sets Monthly Capacity
Our 14,000 m² factory in Shuigai Industrial Park operates dedicated workshops for housing production, assembly, inspection, and packaging — capable of fulfilling high-volume orders without compromising delivery timelines.
7–15 Day Standard Delivery
Backed by the Yangtze River Delta supply chain cluster, standard-spec linear guide rails are typically shipped within 7–15 business days. Custom and non-standard profiles are quoted with confirmed lead times upon order confirmation.
MOQ of Just 1 Piece
Whether you need a single replacement rail or a 10,000-unit production run, Baili accepts all order sizes. Sample orders are welcome — freight is covered by the buyer.
Linear Guide Rail Specifications
| Parameter | Range / Standard |
|---|---|
| Rail Series | HGR / EGR / MGN / MGW / Custom |
| Rail Width | 7mm – 65mm |
| Precision Grade | Normal (N) / High (H) / Precision (P) / Super Precision (SP) |
| Positional Accuracy | ±0.005mm (German Standard) |
| Surface Hardness | HRC 58–62 (induction hardened) |
| Surface Treatment | Nickel plating (standard); blackening available |
| Material | GCr15 bearing steel (rail); carbon steel housing |
| Compatible Brands | THK, HIWIN, INA, Bosch Rexroth |
| MOQ | 1 pc |
| Lead Time | 7–15 days (standard); custom TBD |
| Monthly Capacity | 100,000 sets |
Types of Linear Guide Rails We Offer
lStandard Linear Guide Rail (HGR / EGR Series)
The most widely used format in CNC machining centers and gantry systems. Available in 15mm, 20mm, 25mm, 30mm, 35mm, 45mm widths. Supports four-direction equal load and moment loads.
Miniature Linear Guide (MGN / MGW Series)
Designed for compact automation, lab instruments, and semiconductor handling equipment where space is constrained. Rail widths from 7mm to 15mm with slim-profile sliders. → View Miniature Series
Custom & Non-Standard Linear Guide Rail
For OEM applications requiring special rail lengths, hole patterns, surface coatings, or preload grades, our engineering team provides non-standard design and precision machining. Inquire with drawings.
Applications of Linear Guide Rails
CNC Machine Tools
Linear guide rails are the primary motion system in CNC machining centers, lathes, grinding machines, and EDM equipment, providing the rigidity and accuracy needed for high-speed cutting and tight-tolerance machining.
Industrial Robots & Robotic Arms
Used in linear robot axes, SCARA systems, and collaborative robot modules, our rails enable precise, repeatable positioning for assembly, welding, and material handling operations.
Semiconductor & Electronics Manufacturing
Miniature linear guides are specified for wafer handling, PCB drilling, pick-and-place machines, and optical inspection equipment, where sub-micron repeatability is required.
Laser Cutting & Engraving Machines
High-speed CO₂ and fiber laser systems rely on low-friction, low-vibration linear guide rails to maintain beam accuracy at cutting speeds exceeding 40 m/min.
3D Printing & Additive Manufacturing
Used in FDM, SLA, and industrial additive manufacturing platforms for X/Y/Z axis motion, where smooth low-stick-slip travel directly impacts surface finish quality.
Medical & Laboratory Equipment
Applied in CT scanners, surgical robots, microscopy stages, and automated diagnostic instruments where cleanliness, low noise, and precise motion are essential.
Packaging & Food Processing Machinery
Stainless-compatible and corrosion-resistant variants support high-cycle indexing and positioning in automated packaging lines and hygienic food-grade environments.
Warehouse Automation & AGVs
Heavy-duty linear rail systems are integrated into automated storage retrieval systems (ASRS), pallet conveyors, and AGV docking stations in modern logistics centers.
Why Choose Baili Guide Rail as Your Linear Guide Rail Supplier?
20+ Years of Industry Expertise
Baili's core engineering team brings over 20 years of accumulated experience in precision linear motion components. This depth of know-how informs every stage — from steel selection and heat treatment to final precision grinding and quality inspection.
Japanese & German CNC Grinding Equipment
Our production lines are equipped with CNC cylindrical and surface grinders imported from Japan and Germany, paired with high-precision directional grinding systems. Automated machining minimizes human variability and ensures batch-to-batch consistency.
CMM-Verified Quality Control
Every batch passes through our Coordinate Measuring Machine (CMM) inspection process — a 3D dimensional verification system that measures rail straightness, parallelism, and geometric tolerances to traceable standards. Inspection reports are available on request.
ISO & CE Certified, 20+ National Patents
Baili holds ISO certification, CE certification (available upon request), and approximately 20 national patents covering guide rail design and manufacturing processes — a demonstrable commitment to technical innovation.
Competitive Pricing with No Hidden Costs
Our direct-manufacturer model eliminates trading company markups. Pricing is transparent, MOQ starts at 1 piece, and all quotations include complete specifications — no surprise costs at shipment.
Responsive Support — 24-Hour Quote Turnaround
Our sales and technical team responds to all inquiries within 24 hours. For complex custom projects, our engineers engage directly from the RFQ stage to ensure specifications are correctly captured before production begins.
How to Order Custom Linear Guide Rails from Baili
Submit Your Inquiry
Send drawings, dimensions, required precision grade, and annual quantity via the quote form below or by email to
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Engineering Review
Our technical team reviews your specifications within 24 hours and confirms feasibility, material selection, and production lead time.
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Quotation
You receive a detailed quotation covering unit price, tooling (if any), lead time, and payment terms.
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Order Confirmation & Deposit
Confirm the order with 30% T/T deposit (or 100% T/T before shipment for smaller orders). Production begins immediately upon payment clearance.
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Production & QC
Rails are manufactured, CMM-inspected, and an inspection report is prepared. Pre-shipment photos or video are available upon request.
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Shipment & Delivery
Goods are packed for export and shipped by courier (standard) or freight forwarder. Tracking information is shared promptly.
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Certifications & Quality Control
ISO Certification
Baili's quality management system is ISO certified, covering the full production chain from incoming material inspection to final shipment.
CE Certification
CE-certified products available; documentation provided upon request for EU market customers.
20 National Patents
Our R&D team holds approximately 20 patents covering linear guide rail design innovations and manufacturing process improvements.
5-Year Best Rail Service Provider
Recognized for five consecutive years as China's Best Guide Rail Service Provider, with a 98.7% customer satisfaction rate.
All certification documents are available in English upon written request.
Our Factory & Equipment
Baili Guide Rail's manufacturing facility covers 14,000 m² in Shuigai Industrial Park, Lishui City, Zhejiang Province — strategically positioned within China's Yangtze River Delta manufacturing cluster. The factory employs approximately 50 staff, including a dedicated R&D and quality engineering team accounting for 5–10% of total headcount. Monthly production capacity reaches 100,000 sets, supporting large-volume orders with consistent quality. The facility houses five purpose-built workshops: Slide Housing Production, Optical Axis Production, Slide Assembly, Slider Inspection, and Slider Packaging. Key equipment includes CNC precision grinders imported from Japan and Germany, a CMM Coordinate Measuring Machine for 3D dimensional verification, temperature- and humidity-controlled precision machining areas, and an industrial-grade central monitoring display for real-time factory operations management. Baili's linear guide rails are exported to customers in 30+ countries across Europe, Southeast Asia, North America, and the Middle East.
Frequently Asked Questions About Linear Guide Rails
Q: What is a linear guide rail used for?
A: A linear guide rail guides mechanical components along a straight path with high precision and low friction. It is used in CNC machine tools, robotic systems, laser cutting machines, semiconductor equipment, and any application requiring controlled linear motion.
Q: What is the difference between a linear guide rail and a linear shaft?
A: A linear guide rail uses profiled raceways and recirculating balls or rollers, providing support and load capacity in multiple directions simultaneously. A linear shaft (round rail) is simpler and lower cost but provides less rigidity and moment load capacity, making it more suitable for light-duty applications.
Q: Are Baili linear guide rails compatible with THK and HIWIN?
A: Yes. Our HGR and EGR series rails are dimensionally interchangeable with THK and HIWIN equivalents. They can be used as direct replacements without modification to existing machine structures or bolt patterns.
Q: What precision grades are available?
A: We offer Normal (N), High (H), Precision (P), and Super Precision (SP) grades. Our standard production achieves ±0.005mm positional accuracy per German standards. Specific grade availability depends on the series and size — please specify your requirement in your inquiry.
Q: What is the minimum order quantity (MOQ)?
A: Our MOQ is 1 piece. We welcome both sample orders and large-volume production runs without restrictions on minimum quantity.
Q: How long does delivery take?
A: Standard-specification linear guide rails are typically shipped within 7–15 business days. Custom or non-standard profiles require additional lead time, which is confirmed at the quotation stage.
Q: Do you offer custom linear guide rails?
A: Yes. We provide non-standard design and precision machining services for OEM customers requiring special lengths, hole patterns, surface treatments, or precision grades. Please submit your technical drawings for evaluation.
Q: What surface treatments are available?
A: Our standard surface treatment is blackening. Nickel plating is available as an upgrade option for applications requiring enhanced corrosion resistance.
Q: What material are the rails made from?
A: Rails are manufactured from GCr15 bearing steel, which undergoes high-frequency induction hardening to achieve surface hardness of HRC 58–62 for optimal wear resistance.
Q: Are your products ISO and CE certified?
A: Yes. Baili holds ISO certification for its quality management system. CE certification is available for applicable product series — documentation can be provided upon request.
Q: What payment terms do you accept?
A: We accept: (1) 100% T/T wire transfer prior to shipment, or (2) 30% T/T deposit with the balance payable by L/C. For first-time orders, 100% T/T in advance is standard.
Q: Can I visit your factory?
A: Yes, factory visits are welcome. Please notify us in advance so we can arrange a proper reception and technical walkthrough.
Q: Can you provide samples before a bulk order?
A: Yes. Sample orders are accepted with MOQ of 1 piece. Shipping costs are borne by the buyer. We recommend requesting samples for first-time qualification before committing to production volumes.
Q: Do you support custom branding or LOGO on products?
A: Yes. We support custom LOGO on nameplates and packaging. Please specify your branding requirements when placing your order.
Q: What after-sales support do you provide?
A: Baili operates a 360° full-cycle service program: 24/7 technical support hotline (+86 193-0588-4099), 2-hour emergency response in East China, 72-hour on-site service nationwide, and 24-hour spare parts delivery within the Yangtze River Delta region. Lifetime technical file management and free technical training (including VR simulation) are also available.
Find professional linear guide rail manufacturers and suppliers in China here! We warmly welcome you to buy discount linear guide rail for sale here and get pricelist from our factory. Also, customized service is available.
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