PET Recycling SSP Systems
URIDGE designs and builds PET SSP (solid-state polycondensation) systems for recycled PET. The process raises the intrinsic viscosity (IV) and molecular weight of washed or prepared PET feedstock, and is configured to your material, incoming condition, target IV, target output and downstream application.
Overview
SSP (solid-state polycondensation) is a downstream upgrading process for PET recycling. Recycled PET can lose intrinsic viscosity (IV) and molecular weight through earlier handling, and an SSP system raises them again by holding the material at controlled temperature in a vacuum or nitrogen atmosphere, improving mechanical strength, thermal stability and barrier behaviour for higher-value reuse.
SSP is distinct from washing and from pelletizing. It is an independent upgrading step, not part of a washing or pelletizing machine; a complete PET recycling operation may run these stages in sequence, but each is separate equipment.
Our PET Recycling SSP System Solutions
Applicable PET Feedstocks
SSP systems are built for recycled PET materials, including:
- RPET flakes from post-consumer bottles
- Washed and sorted PET bottle flakes
- PET strapping and band scrap
- PET fiber and textile waste
- Waste PET film
How SSP Fits Into PET Recycling
Prepared or washed PET feedstock → SSP solid-state polycondensation → IV and molecular-weight upgrading → downstream reuse. SSP is a downstream upgrading step of its own: it is not washing and not pelletizing, and a washing or pelletizing line is not a component of an SSP system.
How We Configure an SSP System
URIDGE proposes an SSP system from your requirements rather than a fixed machine range. Useful details to share include:
- PET feedstock type
- Incoming material condition
- Current IV (if available)
- Target IV
- Target output
- Batch or continuous preference
- Vacuum or nitrogen requirement
- Downstream application
- Factory layout and utilities
- Automation and control requirement
Why Choose URIDGE
URIDGE has been manufacturing plastic recycling and processing equipment since 2008, with more than 18 years of experience, more than 500 customers and exports to more than 50 countries. SSP systems have been delivered to PET recycling projects in India, and each line is customized through engineering, manufacturing, testing, installation, commissioning and global after-sales support.
Featured Projects

Surat, India
Complete SSP System for PET Recycling – Surat, India
We designed and supplied a complete SSP (Solid-State Polycondensation) viscosity increasing system for a PET recycling p…
View Project
New Delhi, India
SSP System for PET Cosmetic Bottle Recycling – New Delhi, India
We designed and supplied a complete SSP (Solid-State Polycondensation) viscosity increasing system for a PET recycling p…
View ProjectPlanning a pet recycling ssp system?
Tell us your recycled PET feedstock, incoming condition, target IV and output — URIDGE will propose the right PET SSP system configuration.