aboutus

Production Line

PRODUCTION LINE
Six Workshops Under One Roof
Integrated manufacturer and trader | Global B2B export

Nantong Shengqiang Machinery Manufacturing Co., Ltd. is based in Lusi, Qidong, Jiangsu, on a 15,000 sqm factory site. Casting, machining, tank fabrication, assembly, inspection and warehousing all happen inside the same fence - nothing is sent out for the critical steps.

 
Aluminium die-casting workshop
01
Aluminium Die-Casting Workshop
In-house casting of the metal bodies for tools and compressors.
Aluminium parts machining workshop
02
Aluminium Parts Machining
Turning, milling and drilling to a 0.01 mm tolerance.
Pressure tank fabrication workshop
03
Pressure Tank Fabrication
Rolling, welding and testing of air-compressor receiver tanks.
Complete-machine assembly line
04
Complete-Machine Assembly
Dedicated lines for cordless tools and oil-free compressors.
Motor warehouse
05
Motor Store
Climate-controlled buffer stock for core motor assemblies.
Finished-goods warehouse
06
Finished-Goods Warehouse
Labelled, palletised and held until the container is booked.
WHAT THIS MEANS FOR YOUR ORDER
Core parts are made in-house, so the schedule is ours to control.

The factory runs on ERP with 5S applied on the floor. Motor, cylinder, head and tank assemblies for cordless tools and oil-free compressors are developed and produced on site; supporting parts come from audited suppliers who are re-checked on a fixed cycle.

Because every stage sits in one plant, a change request or a quality issue is solved on the floor - not negotiated between subcontractors.

15,000 sqm site | 300,000 units per year | 90%+ of output exported | 40% efficiency gain since the 2024 automation upgrade

Manufacturing and trading sit in the same company, which is why we can answer a custom request without a middle layer: OEM and ODM projects, mixed containers and private-label packaging are quoted and scheduled by the people who run the line.

We supply distributors, brand owners and importers who need a factory that can hold a specification over repeat orders - with one contact accountable for quality, lead time and documentation.

OEM/ODM

OEM / ODM
Built to Your Brand, Not Ours
We already build for national brands and retail chains, so private-label work is routine rather than a special project. Five things can be customised, and the path from brief to container is fixed.

WHAT CAN BE CUSTOMISED
01
Brand & logo
Laser engraving or silk-screen printing on the tool body, battery pack, nameplate and carton.
02
Appearance
Shell colour matched to your Pantone code, plus surface texture and finish to your sample.
03
Packaging
Private-label colour box, manual, insert card and outer carton - artwork checked before print.
04
Performance
Voltage, power, torque and speed set to the standards of your target market.
05
New models
ODM development from your drawing, sample or concept, through tooling to mass production.
HOW A CUSTOM ORDER RUNS
01
Requirement brief
Application, target price, certification and volume.
02
Technical review
Feasibility, motor and battery selection, tooling route.
03
Quotation
Unit price, MOQ per custom item, tooling cost, lead time.
04
Prototype
Sample built and tested against the agreed specification.
05
Sample approval
You sign off the sample; we freeze the BOM and artwork.
06
Mass production
Batch run, in-line QC and pre-shipment inspection.
MOQ
Set per custom item, not per container. A logo or packaging change carries a lower minimum than new tooling.
SAMPLES
Every custom sample is tested before the bulk order is released - performance, safety and finish.
CONFIDENTIALITY
Your drawings, brand files and buyer list stay with the project team. No reference customers, no shared moulds.

R&D

R & D
Developed In-House, Then Proven Before It Ships
An independent R&D team works only on cordless power tools and oil-free air compressors. Everything from the control board to the motor is developed here, which is why a specification change does not need a third party's permission.

WHAT THE TEAM DEVELOPS
New product conception
Structural design from a blank page: housing, ergonomics, airflow path and serviceability.
Brushless motor development
Winding, magnet and rotor tuning for torque curves that match how the tool is actually used.
Control board design
Circuit and protection architecture for 21V platforms - over-discharge, over-heat and stall cut-off.
Simulation and prototyping
Prototype builds plus reliability testing before a model is offered to any buyer.
Upgrades on existing models
Function and cost improvements on items already in your catalogue, without changing fit or accessories.
BEFORE A MODEL IS RELEASED
AGING TEST
Continuous run at rated load to expose early failures before release.
DURABILITY TEST
Repeated drop, cycle and thermal stress to the limits of the target market.
SAFETY INSPECTION
Insulation, leakage and protection checks against the destination standard.

We hold multiple utility model patents covering power tool and air compressor structures, and take on ODM projects developed to a customer's own technical specification - drawing, sample or concept. New models are added every year to keep pace with overseas market requirements.

Get in touch with us
Contact Person : Amy
Tel : +86 18964085747
Fax : 86-0513-68261098
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