Frequently Asked Questions (FAQ) On Time and On Budget

Injection Molding & Custom Tooling FAQs

You can ship a sample for us to scan to build 3d model, then we can offer detailed quote.

3D drawing in STEP format, 2D drawing shows tolerance requests, quantity, surface treatment, etc. More detailed info. we know, more accurate price we can offer.

We can offer you within 1 hours if project not very complex.

For prototype usually 4-6 days; Mold without heat treatment can be 25-28 days; Mold need heat treatment a little longer, usually can be done within 35 days.

Fixing mold for minor adjustment usually not need extra cost, it’s our duty to provide qualified Pre- Production sample for customer to confirm.

Yes, we offer design assistance to help optimize your product for injection molding. Our experienced engineers can provide valuable insights and recommendations to improve the manufacturability and performance of your design.

Yes, we welcome clients to visit our factory. Please contact us to schedule a visit. We will provide a guided tour of our facilities, introduce you to our team, and discuss your project in detail.

Quality is our top priority. We implement rigorous quality control processes at every stage of production, including material inspection, mold testing, and final product inspection. Our facility is equipped with advanced testing equipment to ensure all products meet the highest standards.

We work with a variety of materials including ABS, polycarbonate, polypropylene, nylon, and other engineering-grade resins. If you have specific material requirements, please let us know, and we will accommodate your needs. View more materials>>

We serve a wide range of industries including automotive, consumer electronics, medical devices, home appliances, and more. Our expertise allows us to handle diverse projects with precision and efficiency.

We typically require 3D files (STEP/STP/IGS) and part drawings, plus estimated order quantity, material requirements, and surface finish details. If you don’t have engineering files, we can support design assistance.

We can mold ABS, PC, PP, PA66, TPU, POM, PMMA, HDPE, LDPE, TPE, and reinforced materials like GF/CF plastics. We also help customers choose the most cost-effective resin based on application, durability, and cosmetics.

Yes. We provide aluminum prototype molds and bridge tooling options for rapid validation before mass production. Ideal for small batches, design changes, and market testing.

Standard tolerances follow ISO 2768-F and SPI standards. Tight tolerance parts (±0.02 mm) can be supported depending on geometry and resin properties.

Typical mold lead time:
・Simple molds: 2–3 weeks
・Medium complexity: 4–6 weeks
・High-precision multi-cavity molds: 6–8 weeks+
Rush programs are available upon request.

Yes. Mold flow analysis is available to ensure proper flow, cooling, and part quality before machining the mold.

Absolutely. DFM is provided to optimize part geometry, gate location, wall thickness, draft angles, and mold structure — improving manufacturability and reducing defects.

We manufacture single-cavity, multi-cavity, hot runner, cold runner, family molds, insert molds, over-molding tools, and high-volume production molds.

Yes. We store customer molds free of charge and offer flexible reorder quantities for ongoing production needs.

We follow ISO-controlled processes including in-process inspection, CMM measurement, first-article inspection (FAI), and full PPAP on request.

Customers own the mold after full payment unless otherwise agreed. We provide secure mold storage and maintenance services.

50% mold deposit, balance after sample approval. For part production, terms depend on volume and relationship. Flexible options available for long-term partners.

We provide a full range of engineering and commodity plastics: ABS, PC, PP, PA6/PA66, POM, PMMA, PE, PS, PBT, TPE/TPU, and reinforced compounds (GF/CF). Material selection is based on strength, durability, temperature resistance, and surface needs.

Yes. Our engineers analyze structural requirements, operating environment, cosmetic needs, and budget to recommend the most suitable resin.

Yes. We can supply UL, FDA, REACH, RoHS, and medical-grade materials depending on project requirements. Material traceability and certificates are available.

Yes, we support PPS, PEEK, PBT, PA66 GF, and other heat-resistant and reinforced materials for high-performance applications.

Yes, including FDA-compliant, BPA-free, biocompatible, and medical-approved resins. We ensure contamination-free handling and packaging.

We support combinations like PC + TPE, ABS + TPU, PP + TPE, and metal inserts with plastic housings for enhanced function and grip.

Yes. We offer Pantone matching, sample color chips, and custom masterbatch solutions for brand-specific production.

Yes. Surface options include SPI polish, EDM, sand-blast, VDI, Mold-Tech textures, and matte/gloss finishes.

Yes, recycled and eco-friendly resin options are available for sustainable projects. We can help balance environmental goals and performance.

Yes, customer-supplied material is accepted. We verify specs and storage/handling requirements before production.

We verify resin certification, perform incoming inspection, maintain controlled drying/storage, and follow strict molding parameters.

We need product usage environment, required strength, temperature, UV exposure, flame rating, cosmetic needs, and budget targets.

Yes. UL94 V-0, V-1, and HB flame-retardant materials are available for electronics, industrial, and automotive components.

Yes, we mold reinforced plastics with high wear resistance and strength performance — ideal for automotive and industrial parts.

Yes. We offer PLA and bio-resin options for environmentally focused projects. Our team can evaluate feasibility and performance trade-offs.

Why Choose DTG for Custom Injection Molding Services?

01
ISO 9001:2015 Certified

ISO 9001:2015 Certified

Our ISO 9001:2015 quality management system supports consistent processes from material inspection and molding to final inspection and shipment, helping ensure reliable and repeatable quality throughout production.

02
Advanced Manufacturing Equipment

Advanced Manufacturing Equipment

Our modern injection molding equipment supports a wide range of part sizes, materials, and production volumes. Process control and inspection equipment help us maintain consistent quality from initial samples through full-scale production.

03
Engineering & DFM Support

Engineering & DFM Support

Our engineering team provides DFM feedback, material selection support, and mold design recommendations before production, helping identify potential manufacturing issues early and reduce unnecessary tooling changes, delays, and costs.

04
Fast Lead Times

Fast Lead Times

With coordinated engineering, tooling, and injection molding production, we streamline each stage from DFM review to mold trials and production, helping customers shorten development cycles and keep projects on schedule.

05
Injection Molding Expertise

Injection Molding Expertise

Our team supports injection molding projects with complex geometries, tight tolerances, demanding cosmetic requirements, and a wide range of engineering plastics—from prototype development to repeat production.

06
Responsive Project Support

Responsive Project Support

From quotation and DFM review through tooling, sampling, production, and delivery, our team keeps communication clear and responsive. Engineering questions, design changes, and production updates are handled quickly to keep your project moving.

Our Mold Design Process

From initial DFM review to mold validation, every step is engineered to reduce risk and prepare your tooling for reliable production.

01
Requirement Review

Requirement Review

Understand part geometry, material, tolerance, volume, and project goals.

02
DFM & Concept Design

DFM & Concept Design

Evaluate manufacturability and develop the initial mold concept.

03
Detailed Mold Design

Detailed Mold Design

Complete 3D mold design including parting lines, gating, cooling, and ejection.

04
Mold Flow & Design Analysis

Mold Flow & Design Analysis

Review filling, cooling, warpage, and other potential molding risks before tooling.

05
Design Review & Approval

Design Review & Approval

Review the mold design with the customer and confirm final requirements.

06
Tool Manufacturing

Tool Manufacturing

Manufacture mold components and complete assembly according to the approved design.

07
Mold Trial & Validation

Mold Trial & Validation

Perform T0/T1 trials, inspect molded parts, and optimize the mold where necessary.

08
Production Release

Production Release

Approve the mold for production and transfer it into stable injection molding.