Precision Manufacturing. Proven at Scale.
Our Nantong facility combines advanced CNC machining, precision casting, and rigorous quality control to deliver vacuum pumps that meet global engineering standards.
Manufacturing Capabilities
End-to-end production under one roof — from raw material to finished, tested pump.
CNC Precision Machining
Multi-axis CNC machining centers for pump casings, rotors, and shafts. Tolerances to ±0.005 mm on critical sealing surfaces. Full dimensional inspection with CMM.
Precision Casting & Forging
In-house pattern shop and foundry partnerships for cast iron, ductile iron, and stainless steel components. Full material traceability with mill certificates.
Dynamic Balancing
Precision dynamic balancing of rotating components for all rotating assemblies. Eliminates vibration at source — critical for long bearing life and low noise.
Surface Treatment
Electroless nickel plating, PTFE coating, hard chrome, and epoxy painting for corrosion resistance and chemical compatibility in aggressive process environments.
Assembly & Integration
Controlled assembly environment with trained technicians. Torque-controlled fastening, precision alignment, and full assembly documentation for every unit.
Performance Testing
Dedicated in-house vacuum pump performance testing area with calibrated instrumentation. Every pump undergoes performance curve verification, leak testing, and noise measurement before shipment.
Nantong, Jiangsu
Zhongtian Pumps Manufacturing Facility
Quality & Certifications
Our quality management system ensures every pump leaving our factory meets specification — and stays that way in service.
ISO 9001 Certified
ISO 9001 Certified
ISO 9001 certified quality management system. Covers design, manufacturing, testing, and after-sales service.
Material Traceability
Material Traceability
Full material traceability from raw material to finished product. Mill certificates, heat numbers, and inspection records retained for 10 years.
Third-Party Inspection Support
Third-Party Inspection Support
Support for customer-nominated third-party inspection agencies. Customers may arrange independent inspection by their preferred agency prior to shipment.
Export Authorization
Export Authorization
Authorized for the export of industrial machinery and equipment.
Your Engineering Partner for OEM Supply
Zhongtian Pumps has supported OEM customers and global distributors for over 20 years. We understand the requirements of private-label manufacturing and custom engineering.
Private Label Manufacturing
Full private-label programs — your brand name, your color scheme, your documentation. NDA-protected design files and tooling.
Custom Engineering
Application-specific design modifications: custom port configurations, special materials, modified performance curves, non-standard voltages and frequencies.
Dedicated Production Lines
Dedicated production capacity for high-volume OEM programs. Consistent quality, consistent lead times, and a single point of contact.
Global Logistics Support
Export documentation, freight forwarding coordination, and packaging to international shipping standards. Experience with all major global trade lanes.