Who We Are
More than 18 Years manufacturing experience for plastic injection mold, die casting, machining, surface finish and assembly
Dongguan Sincere Tech Co., Ltd. and Dongguan Shi Olayer Electric Appliance Co., Ltd. — an all-in-one partner for product design, mold manufacturing, molding, PCB soldering, assembly and delivery.
All-In-One Services
A contract mold company in China.
Welcome to Dongguan Sincere Tech Co., Ltd and Dongguan Shi Olayer Electric Appliance Co., Ltd, one of the top 10 plastic injection mold and molding companies located in Qiaotou Town, Dongguan City, China. We specialize in creating high-quality plastic molds, part desgin, prototype, PCB design, assembly, all in one services for a wide range of industries, including automotive, electronics, industrial products, toys, eelctric appliactions, house hold products, medical devices, and shipping products to America, Europe, and the world.
Uanset om dit projekt har brug for et par hundrede dele på kort tid eller millioner af dele over en lang periode, har vi den rigtige specialfremstillede sprøjtestøbeform og støbeløsning, der kan spare dig penge.
To work with our plastic mold company, we do not just stop at taking your order and offering you molds and molding parts; we work together at every step along the way, from the design, prototype, PCB soldering, and function testing until the end of the project. We will review all of the possible potential issues and bring all of the suggestions to you.
Når de første prøvedele er kommet ud, vil vores ekspertteam sende dig prøver og gennemgå delene, og vi vil prøve igen for dig fra tid til anden, indtil du har de perfekte varer i overflade, funktion, montering osv. Indtil du helt når dit mål, vil du finde ud af, at vi er den bedste plastformvirksomhed til at støtte din virksomhed.
Vores erfarne team af designere og ingeniører har arbejdet i plastformindustrien i over 18 år og leveret innovative løsninger til vores kunder over hele verden. Med vores avancerede teknologi og topmoderne udstyr er vi i stand til at producere støbeforme, der er præcise, holdbare og omkostningseffektive.
Hos vores plaststøberi er vi forpligtet til at give vores kunder en enestående service fra start til slut. Vi forstår, at hvert projekt er unikt, og derfor tager vi os tid til at lytte til vores kunders behov og arbejder tæt sammen med dem gennem hele design- og produktionsprocessen.



On-Demand All-In-One Services
From product design to packing and delivery.
We are not only a plastic mold company but also offer a complete range of services, from product design and prototype to custom plastic mold manufacturing, massive production, PCB soldering, certificate, assembly, packing, and delivery, all in one convenient location.
01
Send Sketch, Physical samples or rough design
Professional product design services to help you create your own unique product. Our experienced team of designers and engineers work closely with you to ensure your design is functional and meets your specific requirements.
02
Prototype
High-quality prototype services to test and validate your design. If we have any issues, we improve the design and re-prototype until everything is perfect, so you can visualize and test before mass production.
03
Mold Manufacturing
Precision mold manufacturing using injection machines from 60 to 2000 tons, and die casting machines from 120 to 1600Tons, for export or non-export molds — built to HASCO, DEM, MISUMI and other standards, or per your requirement.
04
Massive Production and surface finish
Our massive production services ensure your product is produced with the highest level of precision and quality, using the latest technology and equipment for efficient, consistent manufacturing. Verious surface finish avilable: painting, slk-screen, laser engraving, powder coating, anodizing, etc.
05
PCB Soldering
A complete solution for your electronic product needs. Our team of skilled technicians can assemble and solder your PCB boards with the highest level of precision and quality.
06
Certificate
If we do a complete product for you, your product needs a certificate — the only way to make sure it's safe and long-lasting. We provide comprehensive certification to meet all necessary safety and quality standards.
07
Product Assembly and Inspection
A complete solution for your product needs. Our team of skilled technicians can assemble your products with the highest level of precision and quality through a 100% inspection before delivery.
08
Packing & Delivery
We ensure that your products are shipped safely and on time, using only the finest materials to ensure your products arrive in perfect condition. We can handle the shipment for you as well.
Mold manufacturing guide information
Til eksport af plastforme:
Vi har stor erfaring med fremstilling af eksportforme; vores forme sendes til Amerika og hele Europa.
De formstandarder, vi bruger, er HASCO, DEM, MISUMI, MEUSBURGE, PROGRESSIVE osv. eller i henhold til kundens krav.
The hot runner systems for the injection molds we use YUDO, INCOE, SYNVENTIVE, HASCO, MOLD MASTER, HUSKY, etc., or we use hot runner based on the customer’s special requirements.
For the mold cavity steel, we always use high-quality steel. For the export mold steel, we use 1.2738H, 1.2738HH, 1.2344, 1.2343, S136, NAK 80 for injection molds and 8407, 8418, 1.2344 ESR for die casting molds, or any steel according to the customer’s needs.
For non-export molds:
If we produce plastic molding and die casting parts for you, or need assembly and other services for you, we have the modern, efficient plastic injection machines and die casting machines to mold your parts efficiently and inexpensively, injectino mold cost as low as $500 and die casting mold as low as $1000, of course this is depending on the part size and geomitry designs. Send us your project we will check the price for your in 24 hours.
We do not only offer plastic mold and molding manufacturing services but also silk screen, pad printing, and painting. Quality and service are hallmarks of our operation, with a with a special tight lead time of 15 days, which is offered for some special cases, and an ISO-9001:2008 quality system in place to control the quality of the product.
Our plastic molding company has injection molding machines ranging from 60 tons to 2000 tons to suit your different requirements. Three sets of machines are 2K injection molding machines, which are for two-color molding parts service. We produce two- or single-color mold, multiple cavity mold, over-molding, 2-shot injection molding, insert molding, gas-assisted mold, transparent plastic injection molding, etc.

Pakning og levering:
Vores pakke- og leveringsservice sikrer, at dine produkter bliver sendt sikkert og til tiden. Vi bruger kun de fineste materialer for at sikre, at dine produkter kommer frem i perfekt stand.
At Sincere Tech Mold Company, we are committed to providing exceptional service that goes above and beyond your expectations. Our plastic mold company has served clients in various industries, from small startups to multinational corporations. We have a proven track record of delivering high-quality products and services that meet our clients’ needs on time and within budget.
Vores erfarne team af designere, ingeniører og teknikere arbejder tæt sammen med dig for at sikre, at dit projekt bliver en succes. Vi bruger kun de fineste materialer og den nyeste teknologi til at levere hurtig og præcis produktion og montering af støbeforme, der opfylder dine krav.
Ud over vores tjenester tilbyder vi også enestående kundeservice. Vores team står altid til rådighed for at besvare dine spørgsmål og imødekomme dine bekymringer. Vi mener, at kommunikation er nøglen til et vellykket projekt, og vi bestræber os på at holde dig informeret hele vejen igennem.
Tak, fordi du overvejer Sincere Tech til dit produktdesign, prototype, specialfremstilling af plastforme, massiv produktion, PCB-lodning, certifikat, samling, pakning og levering. Vi er dedikerede til at give dig den bedst mulige service og løsninger, der kan hjælpe dig med at få succes. Hvis du har spørgsmål eller gerne vil vide mere om vores tjenester, kan du kontakte os på info@plasticmold.net.
As you can see from our website that we are a professional all in one company, our goal is to help your business succeed with our best solutions on your project so that you can make the most advisable decisions about which supplier is the best partner for your business.
Nedenfor har vi et mere værdifuldt forslag til dig, så du kan træffe en beslutning baseret på dine produktions- og kvalitetsbehov. Jo mere du ved, jo bedre bliver dine valg. Hvis du vil høre flere forslag fra vores team, kan du kontakte vores tekniske team. Vi vil tilbyde dig de bedste løsninger til at reducere omkostningerne ved dit projekt og få det til at gå hurtigt, gnidningsløst og med succes.
We are proud of our reputation gained over the past two decades of supplying high-quality plastic molds, die casting and some other electric products to customers in Germany, America, Spain, Lithuania, Canada, Italy, Dubai, China, Thailand, Mexico, and other major industrial nations. So far, our reputation as an on-time, reliable, quality, and cost-effective supplier has been growing.
Er du klar til at starte dit nye projekt nu? Kontakt vores team, og lad os være din partner hele vejen sammen. Du vil være 100% tilfreds med vores oprigtige tekniske plastformfirma.

Corporate Culture
As an ISO 9001: 2015-certified manufacturing partner, Sincere Tech brings together experienced mold designers, tooling engineers and project managers under one roof. We combine rich tooling experience with tight quality control to deliver stable production and excellent surface quality on every project.
Our Vision
Our Mission
Our Values

Have a part to manufacture? Let's make it production-ready.
Send your drawings, 3D files or project requirements and our team can review the next step.