Quality Control

Deliver high-quality parts that meet requirements.
ISO_9001-2015

RpProto is dedicated to the continuous improvement and optimization of all custom manufacturing, capabilities from prototype to production. In rapid prototyping and rapid tooling, each production step executes a quality control process to guarantee delivery of high-quality parts to customers.

We fully adhere to the ISO 9001 quality management system. we use advanced testing equipment to measure and inspect to ensure that your project meets stringent quality specifications.

For complex prototypes with tight tolerances, precision measurements conducted by professionals are the only way to ensure perfection. To assure quality, our highly trained inspection personnel use the most advanced digital equipment.

A Reliable Manufacturing Partner

company

1000+
Companies served

parts

4M+
Parts Manufactured

years

20+
 Years in Business

50+
Countries Served

Inspection & Quality Control

CNC aluminum prototyping
Our quality process is run through the entire manufacturing process from RFQs to production shipment.
By tracking and analysing every step of our manufacturing process, we ensure consistent, reliable quality for every prototype.
RpProto Is Your Reliable Partner For Manufacturing Project.

Inspection Equipment

Making products with consistent high-quality requires good process control techniques combined with advanced equipment.
RpProto have advanced inspection equipment to provide the best quality assurance services in the industry.
we are able to perform manufacturing quality control and ensure the parts we manufacture matches your design specifications.

inspection
inspection
inspection
 

We use the Coordinate Measuring Machine (CMM) for dimensional inspection of parts produced.Coordinate Measuring Machine

CMMs can measure physical parts of an object by sensing and collecting points along its surface using a probe.

It is especially suitable for parts with complex geometries.

vms profile projector

On completing the manufacturing process, we use optical comparator/ a projector to inspect the dimension of the components.

This projector is ideal for dimensional check as it precisely measures the part’s dimensions and compare them to the original CAD model.

Any inconsistencies detected by the projector are alerted in a detailed inspection report.

X-Ray Fluorescence analysis

We employ X-Ray Fluorescence (XRF) analysis for checking the material quality.

The XRF analyzer uses short X-rays and gamma rays to determine the elemental composition of metals,

plastics and other materials, to inspect the quality of the materials.

It is used for chemical analysis and enables you to do quality control, ALPHA_II FT-IR spectrometer

quantifications and verification of raw materials. 

The Polymax Plastics Analyzer can identify all major families and subfamilies of plastics: POLYMAX PLASTICS ANALYZER

Polyethylene (PE), Polystyrene, Nylon, Polyvinyl Chloride (PVC), Polycarbonate (PC) and Polypropylene.

PolyMax can even distinguish plastics that are very similar, including: HDPE vs. LDPE, Nylon 6 vs. Nylon 6.6, and ABS vs. SAN.

We use X-Rite spectrophotometer to capture and evaluate the color of your parts.X-Rite Portable Spectrophotometers

It is used to test metal semi-finished products and finished products,Optical Emission Spectrometers

as well as metal processing industry, pipes, bolts, bars, wires, plates, etc.

The Zeiss Comet L3D 2 optical scanner is ideal for checking parts for conformity, identifying manufacturing errors and reverse engineering.  Zeiss Comet L3D 2 Optical Scanner

It capture and compute 3D data quickly and with a high degree of precision. 

automatic video-based inspection and measurement 

SmartScope ZIP Lite

 

Manufacturing Standards & Tolerances

Tighter tolerance are examined on a case by case basis with your technical drawings.

Otherwise we will work to achieve and hold the tolerances listed below. It will vary depending on the manufacturing technique you choose.

SmartScope_ZIP_Lite

RpProto provides high tolerance CNC machining processes for your diverse manufacturing requirements.
For features of orientation (parallelism and perpendicularity) and form (cylindrical, flatness, circularity, and straightness) apply tolerances as table below:

TypeTolerance
Linear dimension+/- 0.025 mm
Hole diameters+/- 0.025 mm
Shaft diameters+/- 0.025 mm
Smallest thread size availableM1x0, 25
Part size limit950 * 550 * 480 mm

If no 3D drawing is provided, RpProto produces parts according to ISO 2768 M standard. Size (Length, width, height, diameter) and location (position, concentricity, symmetry) +/- 0.005” (metals) or +/- 0.010 (plastics and composites)

RpProto provides various injection molding services which includes rapid tooling, insert-molding, over-molding for your manufacturing needs. Each service is based on various manufacturing standards below:

Part Size (mm)Production ToolingRapidTooling
1~22±0.06~0.09±0.08~0.13
22~70±0.11~0.17±0.14~0.24
70~160±0.20~0.29±0.30~0.43
160~250±0.36~0.44±0.51~0.68
250~315±0.44~0.55±0.68~0.85
315~500±0.70~0.90±1.08~1.38
500~1000±1.20~1.90±1.83~2.90

Cores, side actions, tooling strategy, gating, ejection, knit lines and parting lines are determined by RpProto unless explicitly discussed.

Our sheet metal fabrication services includes laser cutting, bending, and other post-processing options.

Dimension DetailTolerance
Forming and bending+/- 0.020
Bend to hole or feature+/- 0.010
Linear dimensions excluding locations to bends+/- 0.005
Diameters with inserts+0.003
Angularity+/- 2 degrees

Tolearance are +/- 0.010” or +/- 0.003” per inch, whichever is larger, is typical. Irregular or overly-thick geometries may cause deviances or deflection due to shrinkage.
A shrinkage rate of +0.15% can be expected due to thermal expansion of the liquid, and the response of the flexible mold.
Surface finish is externally smoothed to a satin or matte surface. Grow lines may be present on internal or difficult-to-access features. Polishing or custom finishes must be clearly defined and agreed upon at the point of order.
Sharp corners and text may appear slightly rounded.

RpProto provides you with the best technologies in 3D printing such as FDM, SLA, SLS, Polyjet.

ProcessMin. wall thicknessLayer heightMax. build sizeTolerance
SLA1.0 mm50 – 100 μm250 * 250 * 250 mm± 0.5% with a lower limit of ± 0.5 mm (± 0.020″)
SLS1.0 mm100 μm420 * 500 * 420 mm± 0.5% with a lower limit of ± 0.15 mm (± 0.006″)
FDM1.0 mm100 – 300 μm500 * 500 * 500 mm± 0.3% with a lower limit of ± 0.3 mm (± 0.012″)

First Article Inspection

For low-volume injection molding and CNC machining orders exceed 6000 USD in total price, first article inspection is available on request. RpProto will reviews on the project and contacts customer for detail information.

We produce sample parts according to agreement and deliver to the customer.

The customer receives and examines the parts, inform RpProto if production may begin.

The production starts and finishes production within lead time.

Rework & Refund Policy

RpProto aim to deliver high quality parts that meet your requirements. However, if your order fails to meet your specifications, you will be covered with our Rework and Refund Policy.
Kindly get in touch with us within five business days of receiving your order, and we will resolve the problem rapidly within 1-3 business days.

Scroll to Top