Quản lý chất lượng

Our company is dedicated to making sure all parts you order are delivered on time and meet your quality expectations.

Hubs manufacturing standards

CNC Machining


Machines & Tools

Hubs manufacturing standards

CNC Machining standards

We follow ISO 2768 standards for CNC Machining.

Limits for nominal size Plastics (ISO 2768- m) Metals (ISO 2768- f)
0.5mm* to 3mm ±0.1mm ±0.05mm
Over 3mm to 6mm ±0.1mm ±0.05mm
Over 6mm to 30mm ±0.2mm ±0.1mm
Over 30mm to 120mm ±0.3mm ±0.15mm
Over 120mm to 400mm ±0.5mm ±0.2mm
Over 400mm to 1000mm ±0.8mm ±0.3mm
Over 1000mm to 2000mm ±1.2mm ±0.5mm
Over 2000mm to 4000mm ±2mm

All parts are deburred. Tightest achievable tolerance is +/-0.01mm and is dependent on part geometry.

Manufacturing Partner assessment

Each of our Manufacturing Partners goes through an extensive onboarding process before being brought onto the Hubs network, including:


Pre-vetting of in-house machinery, available capacity and quality management systems


Completing multiple test orders that are sent out to our HQ and assessed by our quality inspection team


Signing a Non-Disclosure Agreement with Hubs to protect confidential information


Signing a Manufacturing Partner Agreement laying out detailed non-disclosure, confidentiality, general terms

Quality reports

The performance of our Manufacturing Partners is continuously monitored by our Supply team to ensure that all orders are completed in accordance with the Hubs Manufacturing Standards.

This document certifies that a the order has been delivered with the required order specifications.


CNC machining, Sheet metal fabrication, Injection molding


Free of charge

Lead time:

No additional lead time

This document declares that the materials used to manufacture the products, including packaging, do not contain more than 0.1% of hazardous substances as per the ones listed in the European REACH regulation.

Avaibility:CNC machining, Sheet metal fabrication, Injection molding

Price:Free of charge

Lead time:No additional lead time

This quality report where the critical dimensions of a small batch of a full order are inspected and recorded compared to the tolerances allowed.

Avaibility:CNC machining

Price:Starting at $105/line item. Depends on number of critical dimensions and number parts inspected.

Lead time:+5 business days to your order

Measurement tool:CMM and calipers for hard to access features

Requirements:Please provide “balloon” technical drawings. These are technical drawings clearly indicating the critical dimensions to be inspected.


Material test reports are only available for metals. We test the following on a sample from the production batch: chemistry testing, tensile test and hardness test.

Avaibility:CNC machining (Metals)

Price:$205/material alloy

Lead time:+5 days

Material certificates are provided by the raw material supplier and show the chemical composition of the material used for the order.

Avaibility:CNC machining, Injection molding, Sheet Metal Fabrication

Price:Free of charge

Lead time:No additional lead time to your order

RoHS denotes that the following hazardous substances have not been used in the material or finish of the order: Cadmium, Lead, Mercury, Hexavalent chromium, Polybrominated Biphenyls, Polybrominated Diphenyl Ethers, DEHP, BBP, DBP, DIBP.

Avaibility:CNC machining

Price:$65/material alloy and finish combination

Lead time:+5 business days to your order


We work with a vast number of ISO 9001-certified Manufacturing Partners. ISO certifications need to be requested before placing an order. Please contact your Account Manager or sales@hubs.com.

Our Manufacturing Partners also have the following certifications for CNC machining:

  • ISO 14001
  • IATF 16949
  • ISO 27001

Material certifications, data sheets, and test reports are available on request.

Sample Verification Program

First Article Inspection

Our Sample Verification Program is a premium First Article Inspection. This is a standard procedure for all Injection Molding orders, and is available on request for CNC machining orders.

You can utilise this program to:

  • Test for fit in-house
  • Verify that our quality meets your expectations

It works as follows:

  • 2 sets of parts will be shipped to you for verification
  • Once the parts are approved, we will continue with full production

If you require any design changes, you can submit the modified models to us. Please note that any significant changes may result in an increase in price.

  • 110+ presses ranging from 75 to 450 tonnes
  • In-house tooling and mold maintenance
  • Various value-added services

Resolving quality issues

Should your order not meet specifications, you will be able to raise any issues within 5 business days of receiving your parts. Our order fulfillment team will resolve these issues as quickly as possible, typically within 1-3 business days.