3-Axis & 4-Axis Milling
From precision housings to complex contoured rotating components, our multi-axis setups machine intricate features in fewer operations — maintaining tight concentricity, true position, and feature-to-feature alignment.
Services
CNC Milling Services
SCPM’s 3-axis vertical and 4-axis horizontal milling centers hold ±0.005 mm precision on shafts, housings, and tight-tolerance rotating equipment components. From single-piece prototypes to repeat OEM production, every part is verified against drawing intent with CMM inspection.
Built To
Aligned9001:2015- Aligned14001:2015
- Aligned45001:2018
Capability Snapshot
The numbers that matter on your drawing
Achievable tolerance
±0.005 mm
Surface finish (Ra)
0.8 µm
Max part size
1,050 × 920 × 990 mm
Axes
3-axis Vertical, 4-axis Horizontal
Lead time (typical)
3 – 20 days
Batch range
1 – 1,000+ pcs
How we hold these numbers
- Single-Setup Machining: Using 4-axis HMCs, we machine multiple faces in one setup whenever possible. Fewer re-clamping operations mean fewer opportunities for alignment error and better positional accuracy between features.
- In-Process Probing: For critical components and production runs, in-process probing is used to check for tool wear and thermal drift during machining, helping keep part-to-part variation under control.
Materials we worked
- Carbon steel (A36, 1045)
- Stainless steel (304, 316)
- Ductile iron (class 35, Grade 65-45-12)
Equipment & Capacity
What we run on the floor
We operate a focused, tightly maintained fleet rather than a massive, chaotic job shop. Every machine on our floor is regularly calibrated, programmed directly by our technical team, and dedicated strictly to high-precision OEM work.
3-Axis Vertical Machining Center
- Units
- 2
- Travel (X × Y × Z)
- 762 × 508 × 508 mm
- Positioning tolerance
- ±0.005 mm
4-Axis Horizontal Machining Center
- Units
- 2
- Travel (X × Y × Z)
- 1,050 × 920 × 990 mm
- Positioning tolerance
- ±0.005 mm
Process Capabilities
Built for Drawing-Driven Machining
At SCPM, we don't just glance at an RFQ to quote a price. We analyze your geometry, material behavior, and tolerance stack-ups from an engineering standpoint. By planning the entire milling route upfront, our shop floor execution lines up with the drawing and the date we committed to.
For a housing-specific example, see how we apply 4-axis machining for dry screw pump housings before we quote the bore and datum chain.
Tight feature control
Built on a rotating machinery manufacturing background, we routinely hold critical tolerances on bore alignments, sealing surfaces, and deep-pocket cuts — managing material stress and toolpath strategy to prevent distortion.
Prototype to repeat production
We are built to handle both small-batch technical prototyping and ongoing OEM repeat orders. With detailed process logging and proven machine setups, your 100th milled part will fit exactly like the very first sample.
Quality & Inspection
Documentation you can hand to your QA
Every job is built around traceability. CMM data, material certificates, and inspection reports stay with the part file from RFQ to delivery.
CMM Inspection
Serein METERS 122210 CMM (Hexagon Group) in a 20 ± 2 °C controlled room.
Every critical geometry is measured, not estimated. Dimensional inspection reports go out with the part when requested.
Material Traceability
Full transparency from raw stock to finish.
We retain Mill Test Certificates (MTC) for every single heat lot. All post-processing, heat-treatment, and plating reports are archived and instantly retrievable.
FAIR & PPAP Standards
Ready for compliance-driven jobs.
We routinely handle First Article Inspections, PPAP packages, and ISIR tracking. Tell us your quality template, and we will deliver the documentation to match.
Floor Process Control
Prevention over correction.
We maintain stability across production runs through locked-down toolpaths, frequent in-process gauging, and disciplined sampling before any parts leave the floor.
Our Process
From RFQ to delivery
Step 01RFQ & DFM Review
Fast, expert review within 24 hours. We check your drawings to flag manufacturing risks, suggest cost-saving DFM changes, and lock down inspection points early.
Step 02Programming & Fixturing
No guesswork on the machine. Toolpaths are verified via CAM simulation, and custom-engineered fixtures ensure absolute repeatability across every production batch.
Step 03Rough & Finish Machining
Operators trained on the part before any chip flies. We control material deformation through roughing, then switch to finishing for the tolerance-critical features.
Step 04Inspection
Clear data, no surprises. We run full dimensional checks on critical features and issue transparent CMM inspection reports backed by traceable material data.
Step 05Packaging & Shipping
Built for long-distance transport. We apply anti-rust packaging, build heavy-duty custom crates, and handle all international export documentation directly.
Related Reading
From our engineering notes
Long-form pieces our team has written from real shop-floor work, with the trade-offs and decisions behind them.
Article
Dry Screw Pump Housing Tolerances: What We Check Before Quoting
How bore center distance, datum chain, CMM scope, coating allowance, and copied tight callouts change the milling route before quote.
Read article →Article
Dry Screw Pump Housing DFM Review: What We Check First
What we check before quoting a dry screw pump housing drawing: material, blank route, datum chain, coating allowance, and inspection path.
Read article →
More Readings
Finishing Add-On
Need finishing on these parts?
Anodize, passivation, plating, powder coating, bead blast, polish, and water-based spray paint coordinated through SCPM as a packaged add-on to your cnc milling order — one drawing, one PO, no separate finishing supplier to manage.
Common Questions
Frequently asked about cnc milling
What tolerances can you hold on milled parts?
Our standard milling tolerance is ±0.01 mm. For critical dimensions we can achieve ±0.005 mm with appropriate fixturing and verified toolpaths.
What is the largest part you can machine in a single setup?
Up to 1,050 × 920 × 990 mm on our 4-axis horizontal machining center. Larger parts can be machined in multiple setups with precision datum transfer.
Do you handle both prototypes and production runs?
Yes. We support single-piece prototypes through high-volume repeat production. Fixturing and programs are retained for future orders.
Which materials can you mill?
We focus on carbon steel (A36, 1045), stainless steel (304, 316), and ductile iron (Class 35, Grade 65-45-12) — the grades we run day-to-day on industrial OEM work. If your drawing calls for something close to these, send it over and we'll confirm whether we can source and machine it before we quote.
Ready to discuss your part?
Send us your drawings and we'll review them — no commitment required.
