You’ve seen the photos, read the specs, and checked the certifications. But you still don’t know which supplier you can trust.
We help you with that.
We are gearbox engineers. We are based in Changzhou, the heart of China’s extruder industry. We manufacture high-torque gearboxes for multi-screw extruders — from twin-screw to five-screw configurations. That’s why we can evaluate suppliers and their technical proposals more accurately than a general sourcing agent.
Our sourcing service grew out of our gearbox work. We started by building gearboxes for extruders. That gave us direct access to factories — and that access became the basis for this service. So the service isn’t separate from our product. It’s an extension of it.
How we screen
Kunka 6-Dimension Screening Method
We evaluate suppliers across 6 dimensions — each covering multiple checkpoints. Customized to your project: material, output, target market, timeline.
· Hard qualifications – Certificates, export records, and legal standing
· Workshop conditions – Cleanliness, organization, and real production status
· Core component traceability – Where do the key parts come from?
· Process compatibility – Does their equipment match your material and output?
· After-sales support – Spare parts, response time, and commitment
· Case verification – Real examples we can check
What we do
- Supplier Screening – We filter through our supplier pool based on your requirements and narrow it down to three.
- On-Site Verification – We visit the factory on your behalf. We check workshop conditions, equipment, worker efficiency, and inventory. We take videos and photos and send you a factual report.
- Technical Assurance – We review the supplier’s gearbox specification — torque rating, gear ratio, thrust bearing configuration — and flag anything that doesn’t align with your production needs.
How it works
Here’s how the process works — step by step, with costs clearly indicated.
| Step | What happens | What you get | Fee |
|---|---|---|---|
| 1 | Free consultation & initial recommendation 📍 You are here | Brief initial analysis | Free |
| 2 | Screening & shortlisting – 3 factories evaluated against your requirements | Shortlist with clear reasons | Fee applies |
| 3 | On-site factory visit | Video + factual report | Fee applies |
| 4 | Technical agreement review – checking terms, mismatches, and risks | Review notes with flagged risks | Fee applies |
| 5 | Production follow-up & inspection (on request) | Progress report + inspection record | Quoted separately |
Each step is independent. You only pay for what you choose to proceed with. Costs are quoted clearly before each step begins. No hidden charges.
Get started
Send us your requirements. We’ll start with a free consultation.
Not sure if your project fits? Tell us about it. We’ll give you a brief initial analysis at no cost — and you’ll know within one message whether it makes sense to move forward.