Custom Online Injection Molding Service

Quickly move from plastic molded prototypes to high-quality custom production parts. Get bulk pricing & DFM in 1 day. 30+ thermoplastic, thermoset materials.

Free quote with DFM feedback

No MOQ

0.05mm mold tolerance

T1 sample as fast as 2 weeks

Our Custom Injection Molding Services

Utilizing Breton Precision injection molding solutions in China, we shape plastic parts based on part size, intricacy, and volume requirements. On-demand prototypes and production runs are made possible with machines ranging from 30t to 1800t, ensuring every design’s accuracy. Benefit from free design consulation on each injection molding order. Expect quick turnarounds with lead times as short as 15 days.

Injection Mold Tooling

Injection molds are crucial for mass-producing precise plastic molded parts. Made primarily from steel or aluminum, their creation involves intricate design, precise machining, and assembly.

Plastic Injection Molding

Plastic injection molding is a technique where molten thermplastic is forced into molds, solidifying into parts. Enabling efficient, and large-scale production with consistent quality.

Overmolding

Overmolding combines different plastic materials by molding one over another, enhancing functionality, aesthetics, and grip, while reducing assembly time and costs.

Insert Molding

Insert molding encases a pre-set insert with plastic, merging metal and plastic, enhancing strength, simplifying assembly, and ensuring precision integration.

Custom Injection Molding Solutions

Explore our on-demand injection molding solutions to seamlessly transition from prototyping to high-quality production.

Rapid Prototyping

Benefit from our rapid injection molding, delivering 1K-100K units quickly at a low cost. Using aluminum or steel molds, we ensure fast turnaround, directly addressing your production challenges and reducing time-to-market.

Low Volume Production

Low volume injection molding elevates your output, delivering 100K-1M units using resilient steel molds. This ensures high quality and consistency, effectively addressing your need for sizable yet precise production runs while maintaining exceptional standards.

Injection Molding Materials

Breton Precision offers common metals for injection molding tooling, and a variety of popular plastic materials.

Injection Mold Tooling Materials

Before injection molding process starts low or high-volume production, a high tolerance CNC machined tooling is needed. Most commonly used materials include:

Tool Steel: P20, H13, S7, NAK80, S136, S136H, 718, 718H, 738

Stainless Steel:

420, NAK80, S136, 316L, 316, 301, 303, 304

Aluminum: 6061, 5052, 7075

Thermoplastic

Plastic injection molding service comes with a wide range of materials with different properties, including impact strength, rigidity, thermal resistance, chemical resistance, etc.

ABS HDPE LDPE PP

PPA PS POM PC

PU Teflon (PTFE) Nylon

PC PMMA PA PEEK

PET

Thermoset

Several thermoset materials for distinct applications due to their unique bonding properties.

Liquid Silicone Rubber	Epoxy
Polyurethane	Phenolic

Injection Mold Surface Finishes

We primarily offers SPI finishes for plastic injection molds. For VDI textures, specify your requirements when submitting your quote on our platform.

SPI Finish Standards	Surface Roughness RA (mm)	Finishing Method	Texture	Steels Recommended
SPI A1	0.012 to 0.025	6000 Grit Diamond	Super High Glossy finish	S136 (54HRC) or 8407(52HRC)
SPI A2	0.012 to 0.025	3000 Grit Diamond	High Glossy finish	S136 (54HRC) or 8407(52HRC)
SPI A3	0.05 to 0.10	1200 Grit Diamond	Normal Glossy finish	S136 (300HB) or 718H
SPI B1	0.05 to 0.10	600 Grit Paper	Fine Semi-glossy finish	718H
SPI B2	0.10 to 0.15	400 Grit Paper	Medium Semi-glossy finish	718H
SPI B3	0.28 to 0.32	320 Grit Paper	Normal Semi-glossy finish	718H
SPI C1	0.35 to 0.40	600 Grit Stone	Fine Matte finish	718H
SPI C2	0.45 to 0.55	400 Grit Stone	Medium Matte finish	718H
SPI C3	0.63 to 0.70	320 Grit Stone	Normal Matte finish	718H
SPI D1	0.80 to 1.00	Dry Blast Glass Bead	Satin Textured finish	718H
SPI D2	1.00 to 2.80	Dry Blast	Dull Textured finish	718H
SPI D3	3.20 to 18.0	Dry Blast	Rough Textured finish	718H

Classes of Injection Mold

We adhere to the five standard categories of SPI mold classifications from Class 101 to 105, aligning expectations for customers and suppliers alike.

Mold Class	Production Level	Cycles	Applications	Tolerance	Cost	Lead Time
Class 105	Very low	Less than 500 cycles	Prototype testing	± 0.02mm	Inexpensive to produce a very limited number of product prototypes	7-10 days
Class 104	Low	Less than 100K cycles	Good for limited-production parts with non-abrasive materials	± 0.02mm	Fall within low to moderate price ranges	10-15 days
Class 103	Medium	Less than 500K cycles	For low to medium-production parts	± 0.02mm	Fall within common price ranges	10-15 days
Class 102	Medium to high	Less than 1M	Good for parts with abrasive materials and/or tight tolerances	± 0.02mm	Fairly high price and made with materials of high quality	10-15 days
Class 101	Extremely high	Over 1M cycles	Extremely high production and fast cycle times	± 0.02mm	Highest price and made with only the highest quality materials	10-18 days

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