CNC Turned Black Delrin Parts With Tri-Lobe Heads And Center Bore
Why Buyers Switch To This Part
Most OEM teams lose time on three silent costs: parts that wander off tolerance, edges that arrive burred, and plastic that swells after assembly. This turned black Delrin component removes all three.
·Tolerance drift stops here. Critical diameters hold to plus/minus 0.02 mm when your print requires it.
·No burrs on arrival. Every edge is chamfered and micro-deburred, so parts slide into mating pockets without scraping or jamming.
·Stable in wet or humid lines. Low moisture uptake means the part does not swell between warehouse and worksite.
·Quiet, low-friction running. The material keeps moving assemblies smooth without extra lubrication.
·One factory, full process. Turning, lobe milling, cross holes, deburring and inspection under one roof, so nothing gets lost between vendors.
Part At A Glance
Material
black Delrin (POM homopolymer / acetal) rod stock
Body
precision turned cylinder with controlled wall thickness
Head
custom three-lobe contour, machined to seat in a matching pocket without unwanted rotation
Center bore
blind or through, per your drawing; smooth internal finish
Edges
chamfered and deburred, ready for insertion
Surface
uniform matte black, clean of tool marks and flash
Illustrated sample: roughly 12 mm long with an 8 mm stem and 12 mm head; your geometry can differ completely.
Send us any size, any lobe count, any bore layout. If you can draw it, we can turn it.
Black Delrin Material Profile
| Property | Value In Machined Parts | Why It Matters To Buyers |
|---|---|---|
| Coefficient of friction | Low | Smooth sliding against metal and plastic partners |
| Wear resistance | High | Long service life in repeated-contact assemblies |
| Moisture absorption | Very low | Dimensions stay stable in wet, humid or washdown areas |
| Stiffness | High, low creep | Holds position under load and clamping |
| Machinability | Excellent | Crisp edges, fine detail and dependable tolerances |
| Chemical resistance | Resists most solvents, fuels and alkalis at room temperature | Suits pumps, valves and dosing equipment |
| Continuous service temperature | About 90 C, grade dependent | Fits most indoor equipment environments |
| Grades | Natural or black; food-contact compliant grades on request | Covers food machinery and handling lines |
CNC Turning Capability Table
| Operation | What We Deliver |
|---|---|
| CNC turning | Round bodies, steps, tapers, grooves, bores, threads from rod or bar |
| Secondary milling | Tri-lobe heads, flats, slots, cross holes and keyways after turning |
| Tolerances | Standard plus/minus 0.05 mm; critical dimensions to plus/minus 0.02 mm after print review |
| Surface finish | As-machined matte or satin; optional tumbling and polishing |
| Part size | Small precision parts from a few millimetres upward, per drawing |
| Order size | Prototypes from 10-50 pieces; production runs to 100,000 pieces |
| Files accepted | PDF, STEP, IGS, DWG; samples and sketches also welcome |
Typical Applications
Quality You Can Verify, Not Just Trust
Shenzhen Perfect Precision Products Co., Ltd. runs a 20‑year‑old factory with 6,000 square meters of floor space, 100+ CNC machines and a full ERP system.
- Four-stage control: incoming material checks, first-piece inspection, batch sampling and 100% pre-shipment QC.
- Digital proof: 3D inspection equipment, material certificates and sample inspection reports on request.
- Traceability: every batch runs through the ERP, so lots are easy to follow and repeat.
- After-sales: report any issue by call, video conference or email within one month; our team responds with a solution within one week.
Samples And Lead Times
- ·Sample: 1‑2 weeks
- ·Production: 3‑4 weeks after approval
- ·Quote: send PDF, STEP, IGS or DWG, or simply photos and size notes of the part you need
About Us
Processing Material
Application
POSITIVE FEEDBACK
FAQ
1. Are you a manufacturer or a trading company?
We are a factory located in Shenzhen, China, with 20 years of rich experience, covering 6000 square meters. Complete facilities, including 3D quality inspection equipment, ERP system and 40 machines. If necessary, we can provide you with material certificates, sample quality inspection and other reports.
2. How to get a quote?
Detailed drawings (PDF/STEP/IGS/DWG...), including quality, delivery date, materials, quality, quantity, surface treatment and other information.
3. Can I get a quotation without drawings? Can your engineering team draw for my creativity?
Of course, we are also glad to receive your samples, pictures or detailed size drafts for accurate quotation.
4. Can you provide samples before mass production?
Of course, the sample fee is necessary. If possible, it will be returned during mass production.
5. What is the delivery date?
Generally, the sample lasts for 1‑2 weeks and the batch production lasts for 3‑4 weeks.
6. How do you control quality?
(1) Material Inspection - Check material surfaces and approximate dimensions.
(2) First inspection of production - ensure critical dimensions in mass production.
(3) Sampling inspection - check the quality before delivery to the warehouse.
(4) Preshipment inspection - 100% inspection by QC assistant before shipment.
7. After‑sales service team
If you have any problems after receiving the product, you can provide feedback through voice call, video conference, email, etc. within one month. Our team will provide you with solutions within a week.
