28mm Cap End – High‑Precision Custom Castings Delivered Fast
For Purchasing Managers & Operations Leaders: Eliminate over‑priced, low‑quality cap ends and boost line efficiency.
Get Free Quote in 24 hWhy Your Supply Chain Struggles with Standard 28mm Cap Ends
1. High Unit Cost – Typical suppliers charge $12‑$15 per piece, inflating BOMs.
2. Inconsistent Tolerances – ±0.15 mm variance leads to assembly re‑work and scrap.
3. Long Lead Times – 6‑8 weeks from order to delivery disrupts just‑in‑time production.
4. Limited Material Options – Most vendors only offer cast iron, ignoring aluminum or stainless‑steel needs.
5. Poor After‑Sales Support – No technical assistance during integration, causing downtime.
Hebei Yuanda’s Turnkey Solution for 28mm Cap Ends
Core Advantages
- Powerful Factory: 30,000 m² foundry with 5,000 tons of melt capacity.
- Quality Assurance: ISO 9001, CE, RoHS, and ISO 14001 certifications guarantee compliance.
- OEM/ODM Design: Tailored geometry, material (cast iron, Al‑Si, 304 SS), and surface finish.
- High‑Speed Delivery: 2‑4 weeks standard, 48‑hour express for urgent orders.
- Cost‑Effective Pricing: From $8.20 per piece (volume >10 k pcs) – up to 35% lower than competitors.
Technical Specification Sheet
| Parameter | Typical Value | Tolerance | Material Options |
|---|---|---|---|
| Cap Diameter | 28 mm | ±0.10 mm | Cast Iron, Al‑Si 12, 304 SS |
| Wall Thickness | 3.2 mm | ±0.05 mm | All materials |
| Surface Roughness | Ra 0.8 µm | ≤ Ra 1.0 µm | Machined / Sand‑blasted |
| Hardness (HB) | 150‑200 | ± 10 HB | Cast Iron only |
Application Scenarios & Case Studies
Automotive Engine Assembly: A U.S. OEM reduced cap‑end scrap by 42% after switching to our ±0.08 mm tolerance castings.
Hydraulic Pump Manufacturing: Delivered 25 k units in 3 weeks, cutting lead time from 8 weeks to 3 weeks.
Medical Device Enclosures: Provided 304 SS cap ends meeting FDA & ISO 13485, enabling faster market entry.
Frequently Asked Questions
What is the minimum order quantity (MOQ) for a 28mm cap end?
Our standard MOQ is 5,000 pieces. For urgent projects we can accommodate 1,000 pieces with a slight price adjustment.
Can you provide custom material or surface‑treatment options?
Yes. We offer cast iron, aluminum‑silicon, and 304/316 stainless steel, plus anodizing, powder‑coat, and CNC‑machined finishes.
What are the typical lead times for bulk orders?
Standard production: 2‑4 weeks for 10 k‑30 k units. Express service (48 h) is available for orders up to 5 k units.
How do you ensure quality and compliance?
All castings undergo 100% dimensional inspection, hardness testing, and non‑destructive testing (NDT). Certifications are issued per shipment.
What payment terms are accepted?
T/T 30% advance, 70% upon shipment; L/C at sight; or PayPal for samples. We also support Alibaba Trade Assurance for first‑time buyers.
Upgrade Your Production Today – Limited Stock Available!
Free engineering sample (up to 20 pcs) + 30‑day money‑back guarantee if specifications are not met.
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What Our Customers Say
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Michael T., Senior Buyer – GreenTech Solutions (USA)
“The 28mm cap ends arrived on schedule, met the exact tolerance, and saved us $9 k on the first batch. The after‑sales engineering support was superb.” -
Sofia R., Procurement Lead – MedEquip Corp (Canada)
“We needed stainless‑steel cap ends for a sterile environment. Hebei Yuanda delivered ISO‑13485 compliant parts within 10 days. Highly recommend.” -
David K., Operations Manager – BuildCo Manufacturing (UK)
“Switching to their OEM design cut our assembly line change‑over time by 25%. The cost reduction was immediate and measurable.”
About the Author
Alex Chen, Ph.D. – Senior Foundry Engineer with 18 years of experience in high‑precision metal casting for the automotive and aerospace sectors. Former Lead Process Engineer at a Tier‑1 supplier, now heading R&D at Hebei Yuanda Trade Co., Ltd. Published author of “Advanced Casting Techniques for Precision Components” (2023). Certified ISO 9001 Lead Auditor.
Contact: info@ydcastings.com | Phone: +86‑311‑808‑126‑83
For Purchasing Managers & Operations Leaders: Eliminate over‑priced, low‑quality cap ends and boost line efficiency. 1. High Unit Cost – Typical suppliers charge $12‑$15 per piece, inflating BOMs. 2. Inconsistent Tolerances – ±0.15 mm
Trusted by Global Leaders – Social Proof & Certifications
Certificates: ISO 9001, ISO 14001, CE, RoHS, FCC, CB, GS, VDE, SAA, HACCP, GMP, IPPC.