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Custom injection moulding supplier in India for US & EU buyers
General Plastic Industries (GPI) is a custom injection molding supplier in India that has made moulds and moulded plastic parts in Delhi since 1968. Its RoHS-compliant parts are exported to about 55 countries, including Europe and America. One team handles part design, mould making in its own tool room, moulding and assembly, under ISO 9001:2015.
Reviewed by GPI's engineering team · Updated
58years of plastic engineering (since 1968)
~55countries GPI parts are exported to
15in-house moulding machines, 80-700 tonnes
ISO9001:2015 and 45001:2018 certified, RoHS compliant
Why do US and European buyers choose an injection moulding supplier in India?
Buyers in the USA, the UK and Europe look to India for a second source next to China or a local moulder, and for one supplier that owns the whole job. GPI designs the mould, builds it in its own tool room, moulds the parts and assembles them, so one quote and one contact cover every stage.
In-house tool room
Moulds (molds, tools) in P-20, Stavax and Orvar Supreme / H-13 steel, with hot runners, multiple cavities and sliders. GPI can maintain customer moulds over the programme life.
Engineering polymers
PA 66 is moulded regularly, along with PBT, POM, PC, PPS, PES and glass-filled grades for parts that carry load or heat.
Export-grade quality
ISO 9001:2015 and ISO 45001:2018 certified, RoHS-compliant products, and process control by Scientific Moulding.
GPI was the first automatic injection moulding plant in Delhi and has developed about 1,200 products for around 100 clients. Most of the work is automotive, with lighting and industrial customers too, and some customers use GPI as the sole supplier of critical components. Names on GPI's client list include Mahle, Honda, UNO Minda, Exide, Maruti Suzuki, Royal Enfield, Tata and HD Switch (USA). See the injection moulding services page for the full capability list.
What can GPI make for export orders?
GPI makes precision thermoplastic parts and the injection moulds for them, with shot weights from 1 g to 4 kg. The table lists the numbers buyers ask for first.
| Item | GPI capability |
|---|---|
| Moulding machines | 15 in-house injection moulding machines, 80 to 700 tonnes clamping force |
| Shot weight | 1 g to 4 kg |
| Tolerance | Critical features ± 0.1 mm; general dimensions to DIN 16742 |
| Materials | PA 66, PA 6, PA 4.6, PPS, PES, PBT, POM, PC, alloys, TPU, TPE, including glass-filled grades |
| Processes | Insert moulding, overmoulding, thin-wall moulding, post-moulding operations, assembly |
| Mould steels | P-20, Stavax, Orvar Supreme / H-13 for core and cavity; C40/C45 for the mould base |
| New mould lead time | About 45 days to first samples |
| Express Mould | 15-20 days for a mould that usually takes about 2 months, at up to half the usual cost; GPI pays a penalty if late |
| Minimum order | 2,000 pieces per part |
| Inspection | Height gauge, Vernier caliper, micrometer, pin gauges, slip gauges, weighing scale, Shore A hardness tester, torque wrench |
| Certification | ISO 9001:2015, ISO 45001:2018; RoHS-compliant products |
Tolerances and lead times depend on the part design, material and number of cavities. Read more in the tolerance guide and the mould lead time guide.
AutomotiveLightingIndustrialMetal-to-plastic conversion
How do you vet an injection molding supplier in India?
Ask every shortlisted supplier the same questions, in writing. The left column is a checklist you can send to any moulder in India, China or at home; the right column is GPI's answer.
| Check | What to ask any supplier | GPI's answer |
|---|---|---|
| Track record | How long have you moulded, and for which sectors? | Since 1968; mainly automotive, plus lighting and industrial |
| Export proof | Where do your parts ship today? | About 55 countries, including Europe and America |
| Tooling | Do you build moulds yourself or subcontract them? | Own tool room in Delhi; design, build and maintenance in-house |
| Quality system | Which certificates, and how is the process controlled? | ISO 9001:2015, ISO 45001:2018; Scientific Moulding |
| Samples | Do I approve samples before mass production? | Yes; settings are locked to the approved sample |
| Lead time | Days from order to first samples? | About 45 days; 15-20 days with Express Mould |
| Mould ownership | Who owns the mould, and can it be moved? | Agreed in writing at the quote stage |
| Quote clarity | Are mould cost and part price separate? | Yes; mould cost, part price and lead time are shown separately |
Comparing costs? The injection mould cost guide explains what drives the price of a mould.
How does an export order with GPI work?
An export order follows six steps, from your drawing to parts on a ship. You see and approve samples before any mass production, and each stage has a date in the quotation, so you can plan stock and launch dates in your own market.
- 1
Send your RFQ
Email a 2D drawing and 3D model (STEP or IGES), material, quantities and destination. Files are kept confidential.
- 2
DFM review and quotation
Engineers check wall thickness, draft, gates, undercuts and parting line, then quote mould cost, part price and lead time separately. See design and prototyping.
- 3
Mould design and build
The mould is designed and machined in GPI's tool room: about 45 days to first samples, or 15-20 days on Express Mould. More on injection mould making.
- 4
Trial and sample approval
The mould runs on GPI's own machines with the process set by Scientific Moulding. Samples are measured against your drawing and sent for your approval.
- 5
Mass production
Production starts after approval, with settings locked to the approved sample and parts inspected for dimensions, appearance and fit.
- 6
Packing and dispatch
Parts are packed and handed over on the Incoterm agreed in the quote, by sea or air.
Shipping, Incoterms and import duty: what should you agree before ordering?
Agree four things before the first order: the Incoterm, the duty your customs broker expects, the compliance documents you need, and the mould ownership terms. Put them in the RFQ so quotes compare like with like.
| Incoterm | Who books the main freight | Where risk passes to the buyer |
|---|---|---|
| EXW (Ex Works) | Buyer | At the seller's premises |
| FOB (Free on Board) | Buyer | When goods are on board the ship at the Indian port |
| CIF (Cost, Insurance and Freight) | Seller, with insurance | On board at the Indian port, although the seller pays freight to your port |
| DAP (Delivered at Place) | Seller | At your named place, ready for unloading; buyer pays import duty |
Simplified summary. The official rules are published by the International Chamber of Commerce.
1
Import duty
The rate depends on the tariff code and the country. US duties on Indian goods have changed several times since 2025, so check the US Harmonized Tariff Schedule or the EU's Access2Markets tool, or ask your broker.
2
Compliance documents
GPI's products are RoHS compliant. List any other declarations you need in the RFQ, and GPI confirms what it can provide before quoting.
3
Mould ownership and IP
Ownership, storage, maintenance and transfer of the mould are agreed in writing at the quote stage. Drawings and 3D files stay confidential.
4
Time zones and contact
India runs on IST (UTC+5:30), ahead of both Europe and the USA. Email and WhatsApp let your questions wait for the Indian working day with no phone tag.
What should you send for an export quote?
A complete RFQ gets a firm quote faster. Email your drawing files to sales@generalplastic.in or send them on WhatsApp +91-9999-600-619, and use the contact form for your details. If you only have a sample part, GPI can work from that.
1
Drawing and 3D model
STEP or IGES model, plus a 2D drawing with tolerances and critical dimensions.
2
Material
The grade (for example PA 66 GF30), or the properties the part needs.
3
Quantities
First order and expected annual volume (minimum 2,000 pieces per part).
4
Finish and colour
Surface texture, colour reference and any cosmetic areas.
5
Destination and Incoterm
Delivery country, port or address, and the Incoterm you want.
6
Documents and dates
Compliance declarations, inspection reports you expect, and your target sample date.
Related pages
Export injection moulding: frequently asked questions
Straight answers to the questions buyers in the USA, the UK and Europe ask before their first order.
Can an Indian injection moulding supplier serve buyers in the USA and Europe?
Yes. GPI's RoHS-compliant plastic parts are exported to about 55 countries, including Europe and America. Moulds are designed and built in GPI's own tool room in Delhi, parts are moulded on 15 in-house machines from 80 to 700 tonnes, and the quality system is certified to ISO 9001:2015.
How long does a new injection mould take?
For a new mould, GPI typically delivers first samples in about 45 days, depending on part size, cavities, sliders and surface finish. If you need it sooner, the Express Mould offer builds a mould that usually takes about 2 months in 15 to 20 days, and GPI pays a penalty if it delivers late. Freight time is added after you approve the samples.
What is the minimum order quantity?
GPI's minimum order quantity is 2,000 pieces per part. Give the first order and the expected annual volume in your RFQ, so the mould and the number of cavities can be sized correctly.
Who owns the injection mould when I buy parts from India?
Mould ownership should be agreed in writing before work starts. GPI agrees with you at the quote stage who owns the mould and its design, where it is stored, who pays for its care and how it can be moved. The quote shows the mould cost separately from the part price.
Will my drawings and 3D files be kept confidential?
Yes. GPI keeps your ideas, drawings and 3D files confidential. Send a 2D drawing or 3D model (STEP or IGES preferred) to sales@generalplastic.in for a quote.
Which plastics and tolerances can GPI mould?
GPI regularly moulds PA 66, and also PA 6, PA 4.6, PPS, PES, PBT, POM, PC, alloys, TPU and TPE, including glass-filled grades. Critical features are held to plus or minus 0.1 mm, with general dimensions to DIN 16742. Shot weight ranges from 1 g to 4 kg.
How is quality checked before parts are shipped?
GPI tests every new mould on its own machines, sets the process with Scientific Moulding and measures the samples against your drawing. You approve the samples before mass production starts, and the process settings are locked to the approved sample. Parts are checked for dimensions, appearance and fit before dispatch.
Which Incoterm should I ask for?
It depends on who you want to manage the freight. Under EXW or FOB you or your forwarder book the main freight; under CIF or DAP the seller carries more of the journey. Name the Incoterm and the destination port or address in your RFQ, so the quote is prepared on that basis.
Do I pay import duty on plastic parts made in India?
Usually yes. The rate depends on the part's tariff code and the country it enters. US duties on goods from India have changed several times since 2025, so check the current rate in the US HTS or the EU tariff database, or ask your customs broker, before you compare quotes.
Need a second source for injection moulded parts?
Send your drawing for a quote with mould cost, part price and lead time shown separately. GPI has made moulds and plastic parts in Delhi since 1968.