Coordinate measuring machines, profilometers, and automated optical inspection systems demand the highest accuracy. Our P4-grade rails with zero preload (Z0) deliver sub-micron repeatability for critical measurement applications.
Linear Guide Solution
Linear Guide for Measurement
Factory-direct precision rails. HIWIN / THK compatible. Global shipping.
Measurement Solutions
Recommended Linear Guides
Selected series for Measurement — compatible with HIWIN, THK, PMI, TBI.
HG Series
Four-row ball type. Heavy load. Direct HIWIN HG replacement.
View Specs →EG Series
Low-profile, compact. Ideal for tight-space installations.
View Specs →MG Series
Miniature precision. Best for small-scale precision equipment.
View Specs →Cross-Reference: Our Series vs. Branded Equivalents
| Our Model | HIWIN | THK | PMI | TBI | Preload Options |
|---|---|---|---|---|---|
| HG15 / 20 / 25 / 30 / 35 / 45 / 55 / 65 | HG15~65 | HSR15~65 | MSA15~65 | TR15~65 | Z0 / ZA / ZB / ZC |
| EG15 / 20 / 25 / 30 / 35 | EG15~35 | SSR15~35 | MSB15~35 | — | Z0 / ZA / ZB |
| MG7 / 9 / 12 / 15 | MG7~15 | SRS7~15 | — | — | Z0 / ZA |
Case Studies
Trusted by Measurement Manufacturers Worldwide
Bridge-type CMM Y-axis replacement
P4-grade HG25 Z0 installed on a bridge CMM Y-axis. Measurement repeatability of ±0.8μm confirmed across 600mm travel.
Surface roughness measurement instrument
MG7 P4 Z0 used on the tracer arm linear drive. Friction-free motion below 0.1N ensures no distortion of surface profile data.
Automated optical inspection (AOI) gantry
HG20 P5 ZA on X-axis, MG12 P4 Z0 on camera focus Z-axis. System achieves 0.005mm position repeatability at 1.5m/s.
Why Engineers Choose Our Linear Guides
±0.01mm
Positional Accuracy
Rail straightness ≤ 0.02mm/1000mm. Comparable to HIWIN Grade H.
P5 / P4
Precision Grade
Available in P5 standard and P4 precision. Custom preload classes Z0/ZA/ZB/ZC.
IP65
Sealing Option
Optional IP65 sealing with end seals and oil retention felt pads.
5×
Longer Rail Options
Up to 4000mm single-piece rails. No joining required for most CNC applications.
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