HIWIN MGN15 (MGN15C/MGN15H) Miniature Linear Guide Slider
The MGN15 (including MGN15C standard block and MGN15H extended block variants) is a narrow-type miniature linear guide slider from HIWIN's MG Series, engineered for seamless integration with MGNR15 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 rigidity against moment loads.
The MGN15 (including MGN15C standard block and MGN15H extended block variants) is a narrow-type miniature linear guide slider from HIWIN's MG Series, engineered for seamless integration with MGNR15 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 rigidity against moment loads. All steel components (block, rail, balls, retainer) are made of corrosion-resistant martensitic stainless steel as standard, making it ideal for compact precision applications in harsh or clean environments. The integrated ball retainer prevents balls from dislodging during rail separation, enabling safe and easy assembly.
Model Code Breakdown:
- MGN: Narrow-type miniature guide block, MG Series
- 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
- Compact, lightweight design optimized for space-constrained miniature equipment
- Four-point Gothic arch contact design for balanced load distribution and high rigidity against moment loads in all directions
- 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 capacity)
- Preload options: ZF (slight play, 4~10 μm), Z0 (very light preload, ~0, 0–0.01 Cdyn), Z1 (light preload, 0–0.02 Cdyn) to match application stiffness requirements
- Accuracy classes: C (Normal), H (High - standard), P (Precision)
- Compatible with MGNR15 profile rails (15mm width, 10mm height)
Technical Specifications
Dimensions (mm)
MGN15C (Standard Block)
- Total height (H): 16
- Height above rail (H₁): 4 (3 with bottom seal)
- Rail contact height (N): 8.5
- Slider width (W): 32
- Overall length (L): 42.1
- Effective length (L₁): 26.7
- Mounting hole spacing (B): 25
- Mounting hole edge distance (B₁): 3.5
- Inner mounting hole spacing (C): 20
- Mounting hole diameter (Gₙ): M3
- Mounting bolt size: M3 x 4
- Mass: 0.06 kg (60g)
MGN15H (Extended Block)
- Total height (H): 16
- Height above rail (H₁): 4 (3 with bottom seal)
- Rail contact height (N): 8.5
- Slider width (W): 32
- Overall length (L): 58.8
- Effective length (L₁): 43.4
- Mounting hole spacing (B): 25
- Mounting hole edge distance (B₁): 3.5
- Inner mounting hole spacing (C): 25
- Mounting hole diameter (Gₙ): M3
- Mounting bolt size: M3 x 4
- Mass: 0.09 kg (90g)
Load Ratings & Static Moments
MGN15C (Standard Block)
- Basic dynamic load rating (Cr): 4,610 N (4.61 kN)
- Basic static load rating (Cor): 5,590 N (5.59 kN)
- Static rated moments (Nm):
- M0X (MR): 45.1
- M0Y (MY): 21.6
- M0Z (MP): 21.6
MGN15H (Extended Block)
- Basic dynamic load rating (Cr): 6,370 N (6.37 kN)
- Basic static load rating (Cor): 9,110 N (9.11 kN)
- Static rated moments (Nm):
- M0X (MR): 73.5
- M0Y (MY): 57.8
- M0Z (MP): 57.8
Preload & Accuracy Options (Official HIWIN Settings)
Preload Classes
- ZF: Slight play (clearance, 4~10 μm)
- Z0: Very light preload (~0, 0–0.01 Cdyn)
- Z1: Light preload (0–0.02 Cdyn)
Accuracy Classes
- C: Normal accuracy
- H: High accuracy (standard)
- P: Precision
Official Article Numbers
- MGN15CZ0HM (C-block, Z0 preload, H accuracy, stainless steel): 5-001041
- MGN15HZ0HM (H-block, Z0 preload, H accuracy, stainless steel): 5-001047
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
- Narrow block design for 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 3mm)
Compatible Rail
- Matches MGNR15 profile rails (15mm width, 10mm height, product code: 5-001090)
- Rail mounting holes: M4×10, standard pitch 40mm, edge distance 15mm
Application Areas
- Semiconductor and electronics manufacturing equipment
- PCB/IC processing machinery
- Medical and laboratory instruments (e.g., diagnostic equipment, sample handlers, analytical devices)
- Robotics and automation systems with compact designs
- 3D printers and small CNC machines
- Measuring and testing equipment requiring high precision
- Optical and photonics devices (e.g., lens positioning, laser systems, microscopy)
- Any miniature application needing corrosion resistance and precise linear motion
