OEM Process Flow
From your first drawing to full-scale production -- a transparent, structured process with a dedicated project manager at every stage.
Requirements
Submit drawings, samples, or specifications. Our engineers review feasibility within 24 hours.
Sampling
Rapid prototyping with full dimensional inspection. First articles delivered in 7-15 business days.
Confirmation
Client approves samples. Final specs locked. NDA and production agreement signed before proceeding.
Mass Production
Full-scale production across 5 workshops. In-process QC, automated camera inspection, batch traceability.
Requirements
Submit drawings, samples, or specs. Engineers review feasibility within 24 hours.
Sampling
Rapid prototyping with full dimensional inspection. First articles in 7-15 business days.
Confirmation
Client approves samples. Final specs locked. NDA and production agreement signed.
Mass Production
Full-scale production with in-process QC, automated camera inspection, batch traceability.
Sampling Cycle & MOQ Commitments
We understand that speed-to-market matters. Our 5 dedicated workshops and 290+ CNC lathes mean we can move from your drawing to a physical sample faster than most -- with no minimum order pressure holding you back.
7-15 Business Days Sample Turnaround
First article samples produced and shipped within 7-15 business days from drawing approval. Rush options available for critical timelines.
Flexible MOQ -- No Punitive Minimums
Pilot runs from small batches. Scale up at your pace. We accommodate hose assembly shops, retrofit upfitters, and large OEMs equally.
Free Revision Round on Samples
One complete revision cycle at no charge if samples don't meet agreed specifications. Your satisfaction is the gate to production.
CMM Dimensional Report Included
Every sample batch ships with a full CMM dimensional inspection report and material certification, ready for your engineering sign-off.
100% Quality Guarantee
Every part produced under our OEM program carries our absolute guarantee: NO LEAK · NO CRACK · NO BLOW OFF · NO BURST. Backed by electric furnace steel, one-piece weld-free blanks, and automated camera inspection.
Drawing & Sample Submission Guide
We accept multiple formats for your custom fitting specifications. The more detail you provide, the faster we can deliver an accurate quote and begin sampling.
Digital Drawings
- DXF (preferred)
- DWG (AutoCAD)
- PDF with dimensions
- STEP / IGES 3D files
- SolidWorks / Inventor
Include thread type, material grade, surface treatment, and pressure rating in your drawing notes.
Physical Samples
- Send 2-5 sample pieces
- Label with quantity needed
- Note any modifications
- Include target price range
- Specify delivery address
Ship samples to our Ningbo facility. We'll acknowledge receipt within 24 hours and begin reverse engineering immediately.
Spec Sheet / RFQ
- Part number / description
- Connection standard (BSP/NPT/JIC...)
- Operating pressure (bar/PSI)
- Annual volume forecast
- Target delivery lead time
Use our RFQ form below or email directly. Structured specs accelerate our engineering review and quoting process.
Ready to upload your drawing?
Use the project submission form below to attach your DXF, PDF, or image files directly. Max 20MB per file. All submissions are treated as confidential under our standard NDA.
Industry Success Cases
Custom hydraulic fittings trusted by OEMs, retrofit specialists, and distributors across demanding sectors worldwide.
Refuse trucks · Snow removal · Aerial lifts
Challenge
Multi-variety, small-batch custom fittings for specialized upfitters building refuse compactors and aerial work platforms.
Result
Delivered 12 SKU custom elbow adapters in SS304 with black oxide finish. 3-week total cycle from drawing to delivery.
Hydraulic conversion · System retrofits
Challenge
Retrofit workshops needing non-standard adapter configurations not available from catalog suppliers, requiring fast quotes on small batches.
Result
Custom straight adapters with mixed thread standards (BSP × JIC). Low MOQ batches dispatched within 10 days of confirmation.
Tractors · Harvesters · Sprayers
Challenge
Seasonal demand spikes with strict corrosion resistance requirements for outdoor/wet field environments across Europe.
Result
Zinc-nickel plated hose couplings (700+ h salt spray) for major European tractor OEM. ISO 9001 batch certs included with every shipment.
Excavators · Loaders · Cranes
Challenge
High-volume OEM program requiring zero-leak critical fittings for excavator boom hydraulic circuits operating at extreme pressures.
Result
Weld-free electric furnace steel blanks, 100% camera-inspected. Passed 3rd-party burst test at 1.5× rated pressure. 14-month warranty.
Wholesale · Private-label · MRO
Challenge
US distributor requiring private-label branded fittings with broad SKU coverage, consistent batch quality, and fast replenishment cycles.
Result
Full private-label OEM program: custom packaging, branded documentation, 200+ SKU catalog. Quarterly blanket orders with 4-week lead time.
Offshore equipment · Pipeline systems
Challenge
Offshore equipment supplier requiring SS316 fittings with full lot traceability, third-party SGS test reports, and extreme corrosion resistance.
Result
SS316 custom elbow & tee adapters with full material traceability, SGS salt spray reports (700+ h), and TUV certification documentation.
Technical Confidentiality &
IP Protection
We understand that your custom fitting designs, thread configurations, and application specifications represent competitive intellectual property. Our confidentiality framework is built into every stage of the OEM process -- not added as an afterthought.
Request NDA FirstMutual NDA Before Any Review
We sign a mutual Non-Disclosure Agreement before reviewing any drawings, samples, or specifications. No engineering review begins without executed confidentiality protection.
Exclusive Design Ownership
All custom designs, tooling, and specifications developed for your project remain your exclusive property. We do not share, resell, or replicate your designs for any third party.
Access Control & Staff Accountability
Project files are accessible only to the assigned workshop team and your dedicated project manager. All personnel sign internal confidentiality agreements covering client data.
Secure Document Handling
Drawings and technical files are stored on access-controlled internal systems. Physical samples are logged and returned or destroyed per your instructions after project completion.
Legal Framework & Jurisdiction
Our NDA and OEM agreements are enforceable under both Chinese law and international arbitration frameworks, providing legal recourse in your jurisdiction if needed.
One Point of Contact.
Full Accountability.
Every OEM project at Liberfitting is assigned a dedicated project manager who owns your timeline, communicates proactively, and ensures nothing falls through the cracks -- from first drawing review to final shipment.
Your Project Manager
Liberfitting OEM Team
Fluent in English. Available Mon-Sat, responds within 4 business hours. Direct line to engineering and production floor.
Start Your OEM Project
All submissions treated as confidential. NDA available on request.