HIWIN MGW15 (MGW15C/MGW15H) Wide type Miniature Linear Guide Slider
The MGW15 (including MGW15C standard block and MGW15H extended block variants) is a wide-type miniature linear guide slider from HIWIN's MG Series, engineered for seamless integration with MGWR15 profile rails (15mm width). It features a precision Gothic arch contact design with four-point contact, delivering balanced load capacity across radial, reverse radial, and lateral directions, plus exceptional moment rigidity thanks to its wider block design.
The MGW15 (including MGW15C standard block and MGW15H extended block variants) is a wide type miniature linear guide slider from HIWIN's MG Series, engineered for seamless integration with MGWR15 profile rails (15mm width). It features a precision Gothic arch contact design with four-point contact, delivering balanced load capacity across radial, reverse radial, and lateral directions, plus exceptional moment rigidity thanks to its wider block design. All steel components (block, rail, balls, retainer) are made of corrosion-resistant martensitic stainless steel as standard, making it ideal for compact precision applications requiring high torque resistance in harsh or clean environments. The integrated ball retainer prevents balls from dislodging during rail separation, enabling safe and easy assembly.
Model Code Breakdown:
- MGW: Wide-type miniature guide block, MG Series (high moment rigidity)
- 15: Nominal rail width (15mm)
- C: Standard block length (compact)
- H: Extended block length (higher load/moment capacity)
- Z0/Z1/ZF: Preload class (Very Light/Light/Clearance)
- H/C/P: Accuracy class (High/Normal/Precision)
- M: Stainless steel material (standard)
Core Features
- Wide block design optimized for high moment rigidity in compact applications
- Four-point Gothic arch contact design for balanced load distribution and exceptional resistance to bending/torsional moments
- Full martensitic stainless steel construction (standard) for excellent corrosion resistance in demanding environments
- Ball retainer system prevents balls from falling out when blocks are removed from rails, simplifying installation and maintenance
- Available in two block lengths: C (standard, compact) and H (extended, higher load/moment capacity)
- Preload options: ZF (slight play, 4~10 μm), Z0 (very light preload, ~0), Z1 (light preload) to match application stiffness requirements
- Accuracy classes: C (Normal), H (High - standard), P (Precision)
- Compatible with MGWR15 profile rails (15mm width, 9mm height)
Technical Specifications
Dimensions (mm)
MGW15C (Standard Block)
- Total height (H): 16
- Height above rail (H₁): 3.4 (2.6 with bottom seal)
- Rail contact height (N): 9
- Slider width (W): 60
- Overall length (L): 54.8
- Effective length (L₁): 38
- Mounting hole spacing (B): 45
- Mounting hole edge distance (B₁): 7.5
- Inner mounting hole spacing (C): 20
- Mounting hole diameter (Gₙ): M3
- Mounting bolt size: M3
- Mass: 0.14 kg (140g)
MGW15H (Extended Block)
- Total height (H): 16
- Height above rail (H₁): 3.4 (2.6 with bottom seal)
- Rail contact height (N): 9
- Slider width (W): 60
- Overall length (L): 73.8
- Effective length (L₁): 57
- Mounting hole spacing (B): 45
- Mounting hole edge distance (B₁): 7.5
- Inner mounting hole spacing (C): 35
- Mounting hole diameter (Gₙ): M3
- Mounting bolt size: M3
- Mass: 0.22 kg (220g)
Load Ratings & Static Moments (Official Data)
MGW15C (Standard Block)
- Basic dynamic load rating (Cr): 6,770 N (6.77 kN)
- Basic static load rating (Cor): 9,220 N (9.22 kN)
- Static rated moments (N·m):
- M0X (MR): 199.3
- M0Y (MY): 56.7
- M0Z (MP): 56.7
MGW15H (Extended Block)
- Basic dynamic load rating (Cr): 8,930 N (8.93 kN)
- Basic static load rating (Cor): 13,380 N (13.38 kN)
- Static rated moments (N·m):
- M0X (MR): 299.0
- M0Y (MY): 122.6
- M0Z (MP): 122.6
Preload & Accuracy Options (Official HIWIN Settings)
Preload Classes
- ZF: Slight play (clearance, 4~10 μm)
- Z0: Very light preload (~0)
- Z1: Light preload
Accuracy Classes
- C: Normal accuracy
- H: High accuracy (standard)
- P: Precision
Official Article Numbers
- MGW15CZ0HM (C-block, Z0 preload, H accuracy, stainless steel): 5-000559
- MGW15HZ0HM (H-block, Z0 preload, H accuracy, stainless steel): 5-000563
Material & Hardness (Official HIWIN Specifications)
- Slider body, balls, retainer: Martensitic stainless steel (standard)
- Raceways: Through-hardened to HRC 58–62 for maximum wear resistance and extended fatigue life
- Surface treatment: Passivated stainless steel finish (no additional coating needed for corrosion protection)
Installation & Accessories
Mounting Notes
- Wide block design for enhanced moment rigidity in space-constrained applications
- Four M3 mounting holes for secure top mounting
- Self-aligning capability compensates for minor parallelism errors between mounting surfaces
- Recommended mounting torque: Follow HIWIN official installation guidelines for M3 bolts
Lubrication & Sealing
- Standard lubrication points for grease lubrication
- Optional E2 self-lubricating inserts available to extend maintenance intervals significantly
- Integrated scraper seals as standard; bottom seal available as option (reduces H₁ to 2.6mm)
Compatible Rail
- Matches MGWR15 profile rails (15mm width, 9mm height, product code: 5-000598)
- Rail width (WR): 42mm, base width (WB): 23mm
- Rail mounting holes: M4×10, standard pitch 40mm, edge distance 15mm
Application Areas
- Semiconductor and electronics manufacturing equipment requiring high moment rigidity
- PCB/IC processing machinery (e.g., pick-and-place, inspection systems)
- Medical and laboratory instruments (e.g., diagnostic equipment, sample handlers, analytical devices)
- Robotics and automation systems with compact designs and high torque loads
- 3D printers and small CNC machines needing enhanced rigidity
- Measuring and testing equipment requiring high precision and stability
- Optical and photonics devices (e.g., lens positioning, laser systems, microscopy)
- Any miniature application needing corrosion resistance, precise linear motion, and high moment capacity
