Sovrin Plastics

705 Stirling Road, Slough, SL1 4ST

Sets it apart · Injection Moulding — UK · scanned 2026-08-20— click a claim to see its decomposition

About

Sovrin Plastics Limited, a UK-based contract manufacturer with over 60 years of experience, specializes in precision plastic injection moulding for the medical device sector, operating from two sites in Slough, Berkshire. They offer a comprehensive end-to-end service from concept to high-volume production, utilizing cleanroom injection moulding (ISO 14644 Class 7 & 8), white room facilities, and advanced techniques like insert, over, and twin-shot moulding across most thermoplastics. Serving diverse medical applications including microfluidics, ocular components, auto-injectors, inhalers, IVDs, and surgical instruments, Sovrin is committed to quality with ISO 13485:2016 accreditation and two temperature-controlled quality laboratories, providing full validation and regulatory support. Their strongest differentiator is in-house mould tool manufacture and servicing, complemented by automated and small batch assembly, and 24/7 operation.

More detail ↓

Sovrin Plastics Limited is a highly experienced UK-based contract manufacturer with over 60 years in operation, specializing in precision plastic injection moulding for the medical device sector. Operating from two sites in Slough, Berkshire, the company offers a comprehensive end-to-end service, guiding clients from initial product concept through to high-volume production.

Their extensive capabilities include cleanroom injection moulding in ISO 14644 Class 7 and 8 environments, alongside white room facilities. Sovrin processes most thermoplastics using a range of injection moulding machines, including all-electric Fanuc presses, and employs advanced techniques such as insert moulding, over moulding, and twin-shot moulding. They cater to a broad spectrum of medical applications, from microfluidics and ocular components to auto-injectors, inhalers, IVDs, and surgical instruments.

Sovrin Plastics is committed to quality, operating under an ISO 13485:2016 accredited quality management system and maintaining two temperature-controlled quality laboratories. They provide full validation support, including DQ, IQ, OQ, and PQ, alongside regulatory affairs assistance. Key differentiators include in-house mould tool manufacture and servicing, automated and small batch assembly, and 24/7 operation, evidenced by successful projects in critical care components and high-volume medical device production.

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Press fleet6

Moulding processes
Smallest press (t)
Largest press (t)
Press brands
Premium press fleet
All-electric presses

Moulding capability5

Process specialisms
Cleanroom class
Certified cleanroom
Scientific moulding
Product specialisms

Production3

Batch tiers
Handles volume production
Runs 24/7

Prototyping & NPD2

DFM support
Mould-flow simulation

Tooling3

In-house toolroom
Tool services
Tooling origin

Assembly & finishing2

Assembly offered
Assembly capabilities

Quality & inspection4

FAI methodology
CMM
Inspection stages
SPC / Cpk

Certifications & accreditations3

ISO 9001
ISO 14001
Held
ISO 13485

Identity & contact1

Industries served
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Press fleet: Press count · Large-format (≥1,000 t)

Moulding capability: Micro moulding capable · Min part weight (g) · Max part weight (g) · Joining methods · Decoration

Materials: Material modifiers · Recycled content offered · Recycled feedstock types · ESD-capable

Prototyping & NPD: Prototyping routes · Prototypes in final material · Prototyping offered · Product-design service

Tooling: Tool trials offered

Production: Handles prototypes · Bridge production

Machining: Contract machining

Quality & inspection: Automated vision QC

Certifications & accreditations: IATF 16949 · BRCGS Packaging · AS9100 · Cyber Essentials · Food-contact compliance · UL listing · Trade bodies