FQAs
FQAs
Q
What brand of hot runner do you use?

Common hot runner brands include:HUSKY、INCOE、Mold Masters、DME、Synventive、HASCO、YUDO、HRS、GUNTHER. Most brand we use is INCOE, MOLDMASTER and YUDO.

Q
How does your company manage and handle some urgent projects encountered?

Our emergency response plan includes, but is not limited to:

★Centralized allocation of resources to provide the green light for the whole process of emergency projects;

★To hold a meeting for the related department, make a detailed progress plan according to the delivery date, and refine it to every singer process;     

★ Project managers will follow and monitor project progress according to schedule, and report progress status to the customer every-48 hours.

Q
What brand of hot runner do you use?

Common hot runner brands include:HUSKY、INCOE、Mold Masters、DME、Synventive、HASCO、YUDO、HRS、GUNTHER. Most brand we use is INCOE, MOLDMASTER and YUDO.

Q
How does your company manage and handle some urgent projects encountered?

Our emergency response plan includes, but is not limited to:

★Centralized allocation of resources to provide the green light for the whole process of emergency projects;

★To hold a meeting for the related department, make a detailed progress plan according to the delivery date, and refine it to every singer process;     

★ Project managers will follow and monitor project progress according to schedule, and report progress status to the customer every-48 hours.

Q
How to deal with any ECR from customers normally?

Mold designer will check ECR as soon as receive customer new part drawing, and then provide detailed modification solution by a PPT.

Quote Engineer provide quotation sheet and lead time as per the PPT of modification solution.

Project Manager send PPT and quotation sheet with lead time to customer approval by email.

Start modification after getting customer approval.

★Whether a fee is incurred depends on the size of the ERC.

Q
Can your company do DFM for free before placing an order?

DFM is usually provided after customers place an order, which is one of the services of HJ; It is free for our customs.

Q
How long does it normally take to design a mold?

Usually 3-5 working days, depending on the complexity of the mold.

Q
How does your company control the quality of mold design?

HJ has a special design director position, mainly responsible for mold design quality control.

Tooling Design Engineers focused on the tooling technology support with rich experience in the field.

Internal mold design evaluation meeting is held for every single mold, mold designer engineer will check mold drawing as per “mold design check list”on the meeting.

Different customers have a specific tooling design engineer to provide tooling design services.

Q
Does your company provide 2D assembly drawing?

HJ provides full 3D mold design, we can provide 2D assembly drawing if you need.

Q
If necessary, can you arrange mold designer to review the drawing on-site in our factory?

Yes,we can.if the factory is located in Shenzhen.

Q
When we only have samples and no drawings, can you help to scan and design products?

Yes,we can.Bur some costs may be incurred.

Q
Do you only make production molds?

We manufacture both molds and perform injection molding production.

Q
What is the manufacturing process in your company?

Normal manufacturing process is as below after confirm the order:

Ordering steel--Drilling--Rough machining--Heat treatment--Finish machining 

--Wire cutting --EDM--Polishing--Fitting --T1

Q
How many times does your company's molds usually test?

Normally 2-3 times, except ECR, sampling, and high requirement molds.

Q
How does your company deal with machining mistakes?

We will evaluate the temporary solution and long-term solution immediately and then send to customer approval. 

Mold doesn’t allow welding without the consent of the customer.

Q
What is the mold and product accuracy you can guarantee?

Precision mold can control the product tolerance within +/- 0.03 mm, and the steel tolerance is +/- 0.02 mm. Medium and large products are controlled within +/- 0.10 mm, and steel tolerance is +/- 0.03 mm, except for critical dimensions.

© 2026 Copyright Haijie Precision Mold & Plastic Co., Ltd. All Rights Reserved.