Pentagon Plastics
Unit 4 Blatchford Road, Horsham, West Sussex, RH13 5QR
About
Pentagon Plastics Group, a UK-based contract manufacturer established in 1972, specialises in bespoke plastic injection moulding from their single site in Horsham, West Sussex, offering an end-to-end service from design to volume production. Their comprehensive capabilities include in-house mould tool design and manufacture using advanced equipment like EDM and CNC, alongside 12 injection moulding machines processing a wide array of thermoplastics. Serving demanding sectors such as medical, aviation and aerospace, defence, and construction, Pentagon Plastics Group is ISO 9001:2015 certified, ensuring full process control and traceability. Their key differentiators include in-house tooling, 24-hour production capacity, and dedicated Design For Manufacture (DFM) support, all backed by experienced customer service.
More detail ↓Show less ↑
Pentagon Plastics Group is a well-established UK-based contract manufacturer, founded in 1972, specialising in bespoke plastic injection moulding. Operating from a single site in Horsham, West Sussex, they offer a comprehensive, end-to-end service that covers the entire product lifecycle from initial design to volume production.
Their extensive capabilities include in-house mould tool design and manufacture, supported by advanced equipment such as EDM, CNC, and laser welding. The moulding division boasts 12 injection moulding machines and processes a wide array of thermoplastics, including commodity and engineering grades, as well as specialised materials. Pentagon Plastics serves a diverse range of demanding industries, including medical, aviation and aerospace, defence, and construction.
Certified to ISO 9001:2015, Pentagon Plastics Group provides full 360-degree process control and traceability. They differentiate themselves through in-house tooling, 24-hour production capacity, and dedicated design support via Design For Manufacture (DFM) reviews. Their experienced customer service team ensures comprehensive project support throughout the entire lifecycle.
Verified facts— hover any value to see its source
Press fleet4
- Moulding processes
- Injection moulding
- Smallest press (t)
- 22
- Largest press (t)
- 280
- Press count
- 12
Moulding capability5
- Process specialisms
- Overmoulding
- Min part weight (g)
- 0.5
- Max part weight (g)
- 450
- Joining methods
- Insert fitting
- Decoration
- Painting
Materials2
- Material modifiers
- Antistatic / ESD, Conductive, Flame-retardant
- ESD-capable
- Yes
Production2
- Batch tiers
- High volume, Low volume, Mid volume
- Handles volume production
- Yes
Prototyping & NPD4
- Prototyping routes
- Low-volume prototype moulding
- Prototypes in final material
- Yes
- Prototyping offered
- Yes
- DFM support
- Yes
Tooling4
- In-house toolroom
- Yes
- Tool services
- Design & build, Maintenance, Repair & modification
- Tooling origin
- UK partner
- Tool trials offered
- Yes
Assembly & finishing1
- Assembly offered
- Yes
Quality & inspection2
- FAI methodology
- FAI (customer format)
- Inspection stages
- First-off
Certifications & accreditations1
- ISO 9001
- Held
Identity & contact1
- Industries served
- Medical devices
30 of 56 facets not yet verified — show which
Press fleet: Press brands · Large-format (≥1,000 t) · Premium press fleet · All-electric presses
Moulding capability: Micro moulding capable · Cleanroom class · Certified cleanroom · Scientific moulding · Product specialisms
Materials: Recycled content offered · Recycled feedstock types
Prototyping & NPD: Product-design service · Mould-flow simulation
Production: Handles prototypes · Runs 24/7 · Bridge production
Assembly & finishing: Assembly capabilities
Machining: Contract machining
Quality & inspection: CMM · SPC / Cpk · Automated vision QC
Certifications & accreditations: ISO 14001 · ISO 13485 · IATF 16949 · BRCGS Packaging · AS9100 · Cyber Essentials · Food-contact compliance · UL listing · Trade bodies