S G H (Moulds)
Unit 55 Tonge Bridge Ind Estate,, Hypatia Street, Bolton, BL2 6BD
About
SGH (MOULDS) LTD, a UK-based contract manufacturer established in 1978 with five Greater Manchester sites, specialises in plastic injection moulding and integrated tooling, offering a vertically integrated solution from design and engineering to precision moulding and assembly, supported by extensive production, warehousing, and ISO Class 8 cleanroom facilities. Processing a wide array of polymers across injection moulding capacities from 22 to 650 tonnes, SGH serves diverse industries including Medical, Defence, Industrial Automation, and Consumer products, adept at low-volume, high-mix production managing around 1,000 active SKUs annually with typical tolerances of ±0.1 mm. Holding ISO 9001 and ISO 14001 accreditations, with ISO 13485 targeted, SGH's strongest differentiator lies in its in-house toolroom engineering with advanced CNC and EDM capabilities, coupled with a structured DFM approach and integrated warehousing offering JIT and logistics solutions, providing supply chain integration, transparency, and reduced geopolitical risk through UK-based operations.
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SGH (MOULDS) LTD is a well-established UK-based contract manufacturer, operating since 1978 from five sites in Greater Manchester. The company specialises in plastic injection moulding and integrated tooling services, offering a vertically integrated solution from design and engineering through to precision moulding and assembly. Their extensive facilities include production, warehousing, and ISO Class 8 cleanroom capabilities.
With injection moulding capacity ranging from 22 to 650 tonnes, SGH processes a wide array of polymers for diverse industries including Medical, Defence, Industrial Automation, and Consumer products. They are adept at low-volume, high-mix production, managing approximately 1,000 active SKUs annually. Their capabilities extend to comprehensive lifecycle manufacturing support, including tool maintenance, materials expertise, and dimensional control with typical tolerances of ±0.1 mm.
SGH holds ISO 9001 accreditation, maintained for over two decades, and ISO 14001 accreditation, with ISO 13485 targeted. They provide full tool validation and PPAP support. Key differentiators include in-house toolroom engineering with advanced CNC and EDM capabilities, a structured DFM approach to mitigate risk, and integrated warehousing with JIT and logistics solutions. Their UK-based operations offer supply chain integration, transparency, and reduced geopolitical risk, supported by structured stockholding and international shipping.
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Press fleet3
- Moulding processes
- Injection moulding
- Smallest press (t)
- 20
- Largest press (t)
- 650
Moulding capability4
- Process specialisms
- Insert moulding
- Cleanroom class
- ISO Class 8
- Certified cleanroom
- Yes
- Product specialisms
- Automotive components
Materials1
- Material modifiers
- Flame-retardant, Glass-filled, UV-stabilised
Production1
- Batch tiers
- Low volume
Prototyping & NPD5
- Prototyping routes
- Low-volume prototype moulding
- Prototypes in final material
- Yes
- Prototyping offered
- Yes
- DFM support
- Yes
- Mould-flow simulation
- Yes
Tooling3
- In-house toolroom
- Yes
- Tool services
- Design & build, Maintenance
- Tool trials offered
- Yes
Assembly & finishing2
- Assembly offered
- Yes
- Assembly capabilities
- Cleanroom assembly
Quality & inspection3
- FAI methodology
- PPAP
- Inspection stages
- First-off
- Automated vision QC
- Yes
Certifications & accreditations2
- ISO 9001
- Held
- ISO 14001
- Held
Identity & contact1
- Industries served
- Construction heavy equipment, Medical regulated, Defence secure supply chains, Industrial automation, Consumer goods
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Press fleet: Press count · Press brands · Large-format (≥1,000 t) · Premium press fleet · All-electric presses
Moulding capability: Micro moulding capable · Min part weight (g) · Max part weight (g) · Scientific moulding · Joining methods · Decoration
Materials: Recycled content offered · Recycled feedstock types · ESD-capable
Prototyping & NPD: Product-design service
Tooling: Tooling origin
Production: Handles prototypes · Handles volume production · Runs 24/7 · Bridge production
Machining: Contract machining
Quality & inspection: CMM · SPC / Cpk
Certifications & accreditations: ISO 13485 · IATF 16949 · BRCGS Packaging · AS9100 · Cyber Essentials · Food-contact compliance · UL listing · Trade bodies