Hero Photo — Injection Moulding Process
Manufacturing Process
Plastic & Rubber
Injection
Moulding.
Engineering polymers and rubber compounds converted into precision components in a single cycle. Thermoplastics for structural applications. High-performance polymers for extreme environments. Rubber moulding for sealing, vibration damping, and wear surfaces. Insert moulding combining metal and polymer in one operation.
Scroll
Standard Thermoplastics
PP · PE · ABS · PS · PVC · high volume · low cost
Engineering Polymers
PA66 · POM · PEEK · PTFE · high strength · precision
Insert Moulding
Metal inserts + polymer · one operation · no assembly
Overmoulding
Two-shot · soft grip · 2-material single part
Rubber Moulding
NR · NBR · EPDM · seals · gaskets · dampers
Process Variants
Four Injection Moulding Processes. One Qualified Supplier.
Plastic and rubber injection moulding under one roof — from standard commodity thermoplastics to high-performance engineering polymers, insert-moulded metal-polymer assemblies, and precision rubber components.
Standard Thermoplastics Photo
Process 01
Standard Thermoplastics — PP, ABS, PE, PVC
🔵 Standard Thermoplastics
High Volume. Low Cost. Consistent Quality.
Standard thermoplastics are the workhorses of injection moulding — polypropylene, ABS, polyethylene, PVC, and polystyrene. These materials produce components at the lowest possible cost per unit when volumes are high. Amsol moulds standard thermoplastics for housings, covers, brackets, trays, and any application where material cost must be minimised without sacrificing dimensional consistency.
±0.1mm
Standard tolerance
15–90s
Cycle time
1mm
Min wall thickness
10K–M+
Volume per year
Engineering Polymers Photo
Process 02
Engineering Polymers — PEEK, POM, PA66, PTFE
⚗️ Engineering Polymers
PEEK at 260°C. POM Gears to DIN 7. PTFE Zero Friction.
Engineering polymers replace metal in demanding environments — high temperature, chemical exposure, precision motion, or extreme wear. PEEK operates continuously at 260°C. POM (Delrin) machines and moulds to precision dimensions suitable for gear blanks and bearing cages. PTFE provides near-zero friction for sealing and sliding applications. Amsol moulds all major engineering polymer grades with the same dimensional discipline applied to metal components.
260°C
PEEK continuous use
±0.05mm
Precision tolerance
DIN 7
POM gear quality
Zero
PTFE friction coeff.
Insert Moulding Photo
Process 03 + 04
Insert Moulding & Overmoulding
🔩 Insert Moulding & Overmoulding
Metal + Polymer. One Operation. No Assembly Step.
Insert moulding places metal components — threaded inserts, pins, electrical contacts, bearing races — inside the mould before injection. The polymer bonds around them in a single cycle, eliminating post-moulding assembly, press-fitting, and adhesive bonding. Overmoulding sequences two polymer materials — a rigid substrate and a soft grip layer — creating comfortable, chemical-resistant, or electrically-insulating assemblies in one tool.
1 Op
Metal + polymer combined
Zero
Post-assembly steps
2-Shot
Overmoulding available
±0.05
Insert position (mm)
Rubber Moulding — NR, NBR, EPDM & Speciality Compounds
Rubber moulding at Amsol covers compression moulding, transfer moulding, and injection moulding of natural and synthetic rubber compounds. Seals, gaskets, O-rings, vibration dampers, bump stops, diaphragms, and rubber-metal bonded assemblies — produced under the same ISO 9001:2015 quality system as all Amsol metal components.
Rubber Moulding Photo
Process 05 — Rubber
NR, NBR, EPDM & Speciality Rubber Compounds
🔴 Rubber Moulding
Sealing. Damping. Vibration Isolation. Rubber-Metal Bonded.
Rubber moulding converts natural and synthetic rubber compounds into precision sealing and damping components. Compression moulding for O-rings, gaskets, and flat seals. Transfer moulding for complex geometry. Rubber-to-metal bonding for vibration isolators and anti-vibration mounts where rubber is bonded directly to a machined metal substrate. Shore hardness from 30A to 90A across all grades.
30–90A
Shore hardness range
±0.2mm
Dimensional tolerance
-50°C
EPDM low temp rating
Metal
Bonded assemblies
Full Capability Range
What Amsol Achieves — Plastic & Rubber Moulding
Standard and maximum achievable specifications at Amsol's facility. All critical dimensions verified by CMM before dispatch.
| Parameter | Standard Capability | Maximum Achievable |
|---|---|---|
| Linear tolerance (plastic) | ±0.1mm | ±0.02mm (engineering polymers) |
| Wall thickness (min) | 1.0mm | 0.5mm (thin-wall specialist) |
| Shot weight range | 1g – 2,000g | Up to 5,000g |
| Rubber Shore hardness | 40A – 80A | 30A – 90A |
| Rubber tolerance | ±0.3mm | ±0.15mm (precision tooling) |
| Insert position accuracy | ±0.1mm | ±0.05mm |
| Optimal volume (plastic) | 5,000 – 500,000/year | 1,000 prototype to millions |
| Tooling material | P20 / H13 steel | S136 hardened (1M+ shots) |
Material Capability
Plastics & Rubber — Full Grade Range
From commodity thermoplastics to aerospace-grade engineering polymers to speciality rubber compounds — every material grade available at Amsol, with batch traceability on all engineering polymers.
PA66 / Nylon 66
Polyamide 66
Tensile70–85 MPa
Max temp120°C continuous
PropertySelf-lubricating
Gears · bushings · cable ties · pump impellers · automotive clips
POM (Delrin / Acetal)
Polyoxymethylene
Tolerance±0.05mm
FrictionVery low
StiffnessHigh
Precision gears · valve seats · pump parts · snap-fit housings
PEEK
Polyether Ether Ketone
Cont. temp260°C
Tensile100 MPa
ChemicalExcellent resistance
Aerospace brackets · medical devices · high-temp seals · chemical pumps
PTFE
Polytetrafluoroethylene
Friction~0.04 (near zero)
Temp range-200°C to +260°C
ChemicalUniversal resistance
Valve seats · seals · bearing pads · chemical resistant liners
NR — Natural Rubber
Polyisoprene · ISO 37
Shore range30A – 80A
Temp range-50°C to +80°C
ElongationUp to 700%
Vibration dampers · anti-vibration mounts · bump stops · general seals · engine mounts
NBR — Nitrile Rubber
Acrylonitrile Butadiene
Shore range40A – 90A
Oil resistanceExcellent
Temp range-40°C to +120°C
Oil seals · O-rings · hydraulic seals · fuel system seals · pump diaphragms · automotive gaskets
EPDM — Ethylene Propylene
EPDM · ASTM D2000
Temp range-50°C to +150°C
UV/OzoneExcellent resistance
WaterExcellent sealing
Outdoor seals · weatherstripping · radiator hoses · window seals · roofing membranes · HVAC gaskets
Silicone Rubber
VMQ / PVMQ
Temp range-60°C to +200°C
Shore range20A – 80A
Food gradeFDA compliant grades
High-temp seals · food/pharma gaskets · medical devices · electrical insulation · aerospace seals
Facility
Amsol Injection Moulding & Rubber Facility
Replace placeholders with actual Amsol facility photography — moulding machines, tooling room, finished components inspection, rubber moulding press.
📷
MOULDING FACILITY WIDE
Amsol Facility · Rajkot
Injection Moulding Production Floor
📷
MOULD TOOLING
Tooling
Injection Mould Tool — Steel
📷
RUBBER MOULDING
Rubber
Rubber Compression Moulding
📷
FINISHED COMPONENTS
Product
Engineering Polymer Components
📷
CMM INSPECTION
Quality
CMM Dimensional Inspection
Industry Applications
Where Amsol Moulded Components Go
Plastic and rubber components active across 7 industries — from railway wear liners to aerospace polymer brackets to oil seal rubber for pumps.
📷
Railway wear liner
Railways
Centre bowl wear liners · wheel chocks · polymer dampers · engineering polymer pivot components
Active Supply📷
Auto moulded part
Automotive
Interior trim · engine bay covers · PA66 gears · POM bushings · rubber seals and gaskets
Active Supply📷
Pump seal component
Pumps & Valves
NBR oil seals · PTFE valve seats · POM impeller components · EPDM diaphragms
Active Supply📷
Electrical housing
Electrical & Energy
Junction box bodies · conduit fittings · EPDM weatherstrip seals · electrical insulator bodies
Active Supply📷
Agro polymer component
Agriculture
Control housings · sensor bodies · rubber dampers for farm equipment vibration isolation
Active Supply📷
Aerospace polymer bracket
Aerospace
PEEK structural inserts · POM bearing cages · silicone seals · weight-reducing polymer brackets
Proposing📷
Industrial polymer part
General Engineering
Custom housings · wear pads · bushings · any engineering polymer or rubber grade
Any Industry
Quality Assurance
Moulded to Drawing. Measured at Amsol.
Every plastic and rubber component inspected before dispatch. Dimensional, material, and mechanical verification on all engineering grades.
CMM Inspection
Critical dimensions measured on every production batch. Report with balloon numbers vs drawing.
Material Verification
Engineering polymer grade confirmed by DSC or MFI testing. Certificate issued with batch traceability.
Shore Hardness Test
Rubber Shore A/D hardness verified every batch. Confirms compound grade and vulcanisation quality.
Visual & Flash Check
100% visual inspection for flash, sink marks, short shots, and surface defects on every batch.
PPAP Level 3
Full PPAP available for automotive and OEM programmes. Dimensional report, material cert, process documentation.
ISO 9001:2015
All moulding processes under Amsol's ISO 9001:2015 quality system. Annual audit. Documented procedures.
Get Started
Plastic or Rubber
Plastic or Rubber
Component Drawing?
Share your drawing with polymer grade and annual volume. An Amsol engineer confirms mould cost, unit cost, and lead time within 24 hours. Rubber compounds and insert moulding included.
✓ DFM in 24 hours✓ NDA available✓ ISO 9001:2015✓ Plastic + Rubber both covered