Verified application · Laser Equipment
Precision rack drive for 12-metre laser gantries
A rack-and-pinion drive package for long-stroke laser cutting gantries, focused on cumulative pitch control, smoother high-speed motion and installation-ready documentation.
Customer context
A laser equipment builder was scaling a gantry platform where travel length, acceleration and installation tolerance made isolated rack purchasing risky. The customer needed a matched package that could keep motion smooth across multiple rack sections while remaining practical for field installation.
Application challenge
Three constraints that define performance
Wolfer solution package
Review every critical interface as one drivetrain
- Class 6 ground rack sections supplied as a matched set with joint orientation marks.
- Matched helical pinions for smoother mesh and lower running noise.
- Precision pinion shafts with datum references for bearing and coupling alignment.
- Locking assemblies and installation notes to stabilize the drive connection.
Engineering approach
From drawing review to inspection release
Mapped rack section sequence and joint location before shipment.
Reviewed pinion tooth contact and backlash setting for the customer's acceleration profile.
Recommended mounting and inspection points for field alignment.
Validation evidence
Validation records available with delivery
- ✓Cumulative pitch measurement record for rack sections.
- ✓Pinion contact check and gear inspection report.
- ✓Straightness, hardness and surface treatment records.
- ✓Installation backlash note for the commissioning team.
Result
Project outcome and reorder value
- Cumulative pitch was held to 0.04 mm across the full 12 m bed — measured after splice grinding and documented per rack section.
- Switching to the matched helical rack-and-pinion set cut running noise by 5 dB at 100 m/min head speed.
- The commissioning team installed against a documented backlash and joint-alignment procedure instead of trial-and-error setup.
VERIFIED OUTCOME
A 12-metre laser-gantry rack drive balancing cumulative accuracy and high-speed noise
The long-travel laser-gantry solution supplies ground racks and the matched pinion as a set, with joining order, installation direction and backlash checkpoints defined. Cumulative pitch deviation across the 12-metre bed was held to 0.04 mm, while operating noise fell 5 dB at a 100 m/min head speed.
12 m
Total gantry travel
0.04 mm
Cumulative pitch control over full travel
100 m/min · ↓5 dB
High-speed operation / noise improvement
“We switched our high-precision racks from an imported brand to Wolfer. Accuracy is still fully met, per-batch purchasing cost dropped 35%, and lead time went from 12 weeks to 4 — our supply chain is safer.”
Information needed to start
Prepare these inputs for a faster engineering review and quotation
- Total travel length, rack section length and mounting hole pattern.
- Required accuracy class, backlash target and operating speed.
- Pinion shaft drawing, motor interface and connection method.