CNC Milling Services
High‑precision vertical & horizontal milling for prototypes, low‑volume, and production parts.
ISO 9001:2015
Made in Canada
Years of Experience
Satisfied Customers
Overview
Pearson Manufacturing provides access to CNC milling for teams that demand tight tolerances, reliable lead times, and clean finishes. Some jobs are machined in‑house at our Ontario facility, while others are fulfilled through certified Canadian partners. We coordinate sourcing, QA, and delivery so your parts arrive line‑ready.
⚠️ Hybrid fulfillment: Not all CNC milling is performed at our facility. We act as your sourcing and fulfillment partner to meet cost, capacity, and schedule.
Quick Specs
| Process | Best For | Throughput | Notes |
|---|---|---|---|
| 3‑Axis VMC | Prismatic plates, pockets, profiles | High | Most cost‑effective; broad compatibility |
| 4‑Axis VMC (rotary) | Indexed features, fewer setups | High | Improved alignment & cycle times |
| Horizontal (HMC) | Multi‑face parts, production | Very High | Excellent chip evacuation; palletization |
Common Materials
- Aluminum: 6061‑T6, 7075‑T6
- Steels: 1018, 1045, 4140 (HT by spec)
- Stainless: 303, 304, 316/316L
- Plastics: Acetal (Delrin/POM), UHMW, Nylon, ABS, PC
Our CNC Milling Capabilities
- 3‑ and 4‑axis vertical milling (slotting, pocketing, profiling, surfacing)
- Horizontal milling for multi‑face parts and higher throughput
- Complex multi‑face workholding and custom fixtures
- Precision slots, pockets, bores, and surface profiles
- Micro‑tolerances to ~±0.001″ with engineering review
- Batch sizes from one‑offs to 10,000+
- Material sourcing or machining from customer‑supplied stock
- Inspection reports and FAIR/FAI on request
- Post‑machining finishing & light assembly coordinated end‑to‑end
Design for Manufacturability (DFM)
- Guideline min wall thickness: ≈0.8 mm (metals); ≈1.5 mm (plastics). Thinner possible with review.
- Use standard drill sizes & thread series (UNC/UNF/metric) for faster turnaround.
- Add generous fillets in deep pockets to reduce tool deflection and chatter.
- Only tighten critical datums/tolerances where function requires—keep others at standard.
- For cosmetics, specify face finish (e.g., 1.6–0.8 µm Ra) and break edges to avoid burrs.
- Provide STEP/IGES + PDF; include tapped hole callouts (size, depth, class) and any thread inserts.
Figures above are guidelines. We’ll review your drawing/CAD and confirm achievable specs with the best routing (in‑house or partner) before kickoff.
Common Applications
- Brackets, housings & structural components
- Jigs, fixtures & precision tooling
- Enclosures, covers & mechanical parts
- Multi‑surface parts with tight geometry
CNC Milling FAQs
Is CNC milling done in‑house?
Both. Some parts are milled at our Ontario facility; others are routed to trusted Canadian partners based on material, geometry, capacity, and lead time. All work is coordinated under Pearson QA.
What tolerances can you hold?
Standard commercial tolerances are typically ±0.005″ for metals and ±0.010″ for plastics. Tighter tolerances (e.g., ~±0.001″) may be achievable after engineering review of geometry, process, and inspection plan.
Which materials do you support?
Common: 6061, 7075, 1018, 4140, 303/304/316 stainless, and plastics like Acetal (Delrin/POM), UHMW, Nylon, ABS, and PC. Others available on request.
Do you handle finishing and assembly?
Yes. We coordinate anodize, chem‑film, passivation, powder coat, and light assembly so parts arrive line‑ready.
What files do you accept?
STEP/IGES preferred for geometry; PDF for dimensions, tolerances, threads, finishes, and special notes.
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