Cast Iron Machining & Repair Services
Precision machining, boring, threading, and repair for gray & ductile castings.
ISO 9001:2015
Made in Canada
Years of Experience
Satisfied Customers
Overview
Pearson Manufacturing supports cast iron machining, boring, and repair through a hybrid fulfillment model. Whether manufactured at our Ontario facility or coordinated through our Canadian machining partners, our goal is to provide reliable, heavy-duty cast iron component services that prioritize dimensional accuracy and structural integrity.
We act as your sourcing and logistics partner — managing communication, inspection, and delivery across both internal operations and trusted local suppliers.
Cast Iron Capabilities We Provide Access To
- Boring & Reaming: accurate finishing of large bores & mounting holes
- CNC Milling: pocketing, surfacing, facing & slotting of rigid castings
- Manual Machining: custom rework, adjustments & part recovery
- Threading: coarse & fine threads in thick-walled cast parts
- Repair Machining: crack repair, worn surface rework & remanufacturing
- Installation Prep: machining bases/mounts for bolt-up installations
Why Choose Our Cast Iron Services?
- Minimized chipping & cracking with optimized tooling & fixturing
- Consistent, accurate results on heavy, brittle materials
- Extended part life through precision repair & rework
- Cost savings vs full replacement of large castings
- Expert handling of both gray & ductile iron for reliability
Equipment Used In-House or By Our Partners
- Horizontal boring mills & large-format boring bars
- 3- and 4-axis CNC milling centers
- Manual precision lathes & turning centers
- Heavy-duty drill presses & tapping rigs
- Weld-prep stations & post-weld machining tools
- Rigging cranes & modular fixturing systems
Supported Cast Iron Materials
- Gray Iron – excellent damping, ideal for housings & structural parts
- Ductile Iron – high strength & flexibility for hydraulic bodies
- Meehanite & Ni-Resist – specialty alloys for wear resistance
Typical Applications
- Pump housings & hydraulic manifolds
- Engine brackets & structural castings
- Valve bodies & manifold rework
- Base & mount machining for large assemblies
- Custom cast component restoration & repair
Frequently Asked Questions
What cast iron materials do you support?
We machine gray iron, ductile iron, Meehanite, Ni-Resist, and other specialty alloys through in-house and partner capabilities.
How do you prevent chipping in brittle castings?
We minimize cracking by selecting appropriate tooling geometries, feed rates, and rigid fixturing, whether at our facility or through our certified Canadian partners.
Can you repair cracked or worn cast iron parts?
Yes. Pearson coordinates weld buildup, crack remediation, and post-weld machining — either performed in-house or through trusted partner shops — to restore casting functionality.
What size parts can you handle?
We support large castings up to 2m in length and 1.5m in width, utilizing internal and partner facilities with heavy-duty fixtures and overhead cranes.
Is this manufactured in-house?
Pearson Manufacturing operates on a hybrid fulfillment model. Some cast iron machining is performed in-house, while other projects are fulfilled through vetted Canadian partners depending on part size, tolerance, and scope.
Need Cast Iron Machining & Repair?
Tell us about your casting needs and get a detailed quote, lead-time estimate, and expert advice.
Request a Cast Iron Quote