Large Component Machining
Precision machining of heavy, oversized, and geometrically complex parts.
ISO 9001:2015
Made in Canada
Years of Experience
Satisfied Customers
Overview
Pearson Manufacturing supports large-format machining for plates, frames, weldments, and castings. Depending on envelope and schedule, work may be coordinated through our Canadian partner network to ensure capacity, safe handling, and accurate results—under one QA process and report package.
Scope varies by size, mass, and geometry. We’ll recommend the best routing and inspection plan during intake.
Quick Specs
| Engagement | Best For | Speed | Notes |
|---|---|---|---|
| Rough Machining | Prep of weldments/castings before stress relief | Fast | Leave finish stock; establish datums & flatness |
| Finish Machining | After stress relief/heat treat | Medium | Tight bores/faces; final hole patterns & fits |
| Boring & Facing | Large bores, seats, and gasket faces | Medium | Concentricity/parallelism to print; surface finish control |
| On-Site/Portable | In-place facing/line-boring (by partner) | Varies | When move/rigging is impractical; confirm access |
Our Large-Part Machining Capabilities
- Manual & CNC machining of oversized plates, frames, weldments, and castings
- Heavy-duty boring, surfacing, and facing for large housings and bases
- Custom fixturing/workholding for tall, thin-wall, or awkward geometries
- Datum establishment and machining sequences for distorted or welded parts
- Hole patterns, keyways, counterbores, and precision fits on large components
- Large-format inspection and documentation; partner CMM/portable metrology when required
Design for Manufacturability (DFM)
- Plan machining allowances: leave consistent finish stock on weldments/castings (e.g., 1.5–3.0 mm typical).
- Identify stable datums early; add temporary pads/ears for clamping and remove post-machining.
- Call out flatness/parallelism relative to realistic datums; avoid over-constraining large surfaces.
- Schedule stress relief/normalization between rough and finish machining to minimize movement.
- For long parts, specify where straightness is functionally critical and acceptable bow elsewhere.
- Provide lifting/rigging info (mass, CG estimate, lift points) and site photos for safe handling.
We’ll confirm achievable tolerances, sequencing, and inspection before kickoff.
Why Choose Us for Large Parts?
- Capacity flexibility through a trusted Canadian network for oversized work
- Risk-managed sequencing: rough → stress relief → finish → inspect
- Cost control via fixture strategy and targeted tight-tolerance features
- Clear QA trail: datum scheme, checkpoints, and final report options
- Logistics help for heavy parts: packing, rigging coordination, and delivery
Industries We Serve
- Industrial Machinery & Press Equipment
- Mining, Aggregates & Material Handling
- Pulp/Paper & Wood Products
- Energy & Power Generation
- Marine & Heavy Vehicle Components
Common Applications
- Machine bases, subframes, and mounting plates
- Gearbox housings, pump bodies, and bearing seats
- Large fixtures, risers, tooling plates, and weldments
- Heavy-duty brackets, motor mounts, and coupler flanges
Large-Part Machining FAQs
What size/weight can you handle?
Typical routing supports parts up to ~2.0 m long, ~1.5 m wide, and ~2,000 kg with appropriate fixturing and rigging. Larger work may be accommodated via partner facilities—send details for confirmation.
Can you machine customer-supplied castings or weldments?
Yes. We regularly rough/finish machine castings, plates, and fabricated weldments. Provide drawings, expected stock, and any stress-relief plans.
How do you control distortion on large parts?
We establish robust datums, rough machine and de-stress, then finish machine critical features. Fixturing, sequence, and inspection checkpoints are planned up front.
Do you offer large-format inspection reports?
Yes—granite/indicator methods internally; CMM/portable metrology reports are coordinated through partners when required by tolerance or geometry. Request a large-part machining quote — include overall size, mass, material, and any stress-relief/heat-treat notes.
Need Help with a Large Part?
Upload your drawing or contact us for setup, capacity, and pricing—we’ll map the best routing under Pearson QA.
Start Your Quote