No job is too small or too big for ±3 .
Exceptional rapid prototyping and production services
ABOUT US
±3-Plus Minus Three Industrial Co., Ltd is a professional precision machining shop founded in Shenzhen, China in 2007.
We offer close tolerance CNC Milling, CNC Turning, Laser Cutting,
CNC bending service by our state-of-the-art Precision Machining equipment.
Providing competitive rapid prototype and short to medium run production machining services for
our customers from all over the world.
We have long-term cooperated vendors who offer anodizing,
plating, welding, painting, heat treatment, and other finishing services.
This helps us to deliver products with value-added services for our customers.
Focus on your business. We’ll be your one-stop machine shop in China.
Our Sheet Metal Fabrication Shop
Our CNC Machine Shop
Our Inspection Equipment
CMM
QM-Height
Micrometer
CNC Machined Parts We Made Before
CNC Machining FAQs
Do you have a minimum order quantity?
NO! – No minimum quantity!Plus Minus Three Industrial Co., Ltd provides prototypes and short to medium-run production machining services.
What type of design files does ±3 accept for quoting?
For the 3D drawing, we would prefer STEP, IGES, or X_T format. For the 2D drawing, we would prefer PDF format there are tolerances with the dimensions if possible.
How can I pay Plus Minus Three Industrial Co., Ltd?
±3 accepts payment in two ways: 1. Bank to bank wire transfer 2. PayPal
What general tolerances can Plus Minus Three Industrial Co., Ltd achieve?
General Machining Tolerances on metal to +/- 0.005" (+/- 0.127 mm) following ISO 2768 unless otherwise specified. Plastics and composites will be +/- 0.010”(+/- 0.254 mm).
What precision tolerances can Plus Minus Three Industrial Co., Ltd achieve?
Precision Machining Tolerances down to ±.0002" (0.005mm). ±3 can manufacture and inspect to tight tolerances per your drawing specifications.
How quickly can I get my parts?
Lead times are 2 to 3 weeks for prototypes and 4 weeks for production runs. Emergency and rush services are available.
