We machine production parts for Construction Equipment customers, from single prototypes through to repeat batches of tens of thousands. Typical work covers hydraulic cylinder parts, bucket pins and slew rings, usually in 4140 or 1045.
What makes Construction Equipment different from general machining is not the geometry — it is the documentation and the failure modes. The parts that come back are the ones where shock loading, not steady load, causes most failures was not designed out at the start.
Parts we machine for Construction Equipment
- Hydraulic cylinder parts
- Bucket pins
- Slew rings
- Track components
- Cab mounts
Materials we run for Construction Equipment
- 4140
- 1045
- Hardened steel
- Ductile iron
Standards and documentation
- ISO 6014, ISO 3471 for ROPS, regional machinery directives
Tell us which standard applies and which documents you need with the shipment. Dimensional reports, material certificates, certificates of conformity and first article inspection reports are all available, and it is much cheaper to agree them before the batch runs than to reconstruct them afterwards.
Where Construction Equipment projects usually go wrong
- Shock loading, not steady load, causes most failures
- Field repair must be possible with simple tools
Tolerance and finish we hold
| Requirement | Typical capability |
|---|---|
| General tolerance | +/-0.1 mm general; H7 bores and Ra 0.4 um on hydraulic sealing surfaces |
| Surface finish | Ra 0.4 to 3.2 um |
| Material certification | EN 10204 3.1 on request |
| Inspection | Dimensional report, CMM report, FAIR |
| Packaging | VCI and desiccant for steel, individual wrap for cosmetic faces |
Frequently asked questions
Do you have experience with Construction Equipment parts?
Yes. Typical parts we run are hydraulic cylinder parts and bucket pins. We can share the process route and inspection approach for a comparable part before you commit.
Which materials do you recommend for Construction Equipment?
4140, 1045, Hardened steel, Ductile iron. The right choice depends on which of corrosion, weight, strength and cost is the binding constraint, and we will say so plainly rather than quoting the most expensive option.
What documentation do you provide?
A dimensional report and a certificate of conformity as standard. Material certificates, CMM reports, FAIR and PPAP submissions are available when your quality system requires them.
What tolerances do you hold for Construction Equipment parts?
+/-0.1 mm general; H7 bores and Ra 0.4 um on hydraulic sealing surfaces is typical for the industry. Tighter tolerance on individual features is possible and is quoted against the specific feature rather than the whole part.
Related pages
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- Instant CNC quote
- Tolerance quick reference
- Frequently asked questions
Get a price for your part
Send a STEP file and a drawing with tolerances, material and quantity. We quote within one working day and machine in our own facility in Shenzhen — milling, turning, EDM, grinding and finishing under one roof, no trading middleman.
Start an instant quote or send your drawings directly. English-speaking engineering support, DFM feedback before you commit to a batch.