The GT3S is a fully automatic linear conveyor carton sandwich wedge erector and heat sealing system with a unique 3 axis, loading conveyor to seal area, transfer system and ultra-quick size change, capable of up to 100 packs per minute.

The GT3S is a fully automatic linear conveyor carton sandwich wedge erector and heat sealing system with a unique 3 axis, loading conveyor to seal area, transfer system and ultra-quick size change, capable of up to 100 packs per minute.

The GT3SV modified atmosphere version of the GT3S machine is the world’s first MA carton sandwich wedge erecting and sealing machine capable of up to 60 packs per minute.


A high throughput carton sandwich wedge de-nest, erect, gas flush and seal machine, capable of speeds up to 100 packs per minute, which has a unique 3 axis carton sandwich wedge transfer system enabling the carton sandwich wedges to be conveyed on hygienic carriers that have a single point size adjustment.

Capable of handling a wide variety of carton sandwich wedge sizes, and with a sub 5 minute size change over, the GT3S range is perfect for users requiring maximum throughput with the minimum of labour.

Both systems have station options for label applicators and printers offering the customer a turn-key production line solution for cartonboard sandwich packaging.

Packaging Materials

  • Carton Sandwich Wedges


Standard design features and benefits 

  • All stainless steel and aluminium construction
  • Fully automatic carton de-nesting and erecting with quick size change
  • Food industry approved hygienic construction and washdown protection
  • Category 3 guarding
  • User friendly, menu-driven control panel with-step-by-step prompts, error and status displays, and useful batch pack counter
  • Recipe handling of machine settings
  • Internet connection for remote monitoring and fault diagnostics
  • Fully integrated control of machine and ancillary equipment
  • Servo driven 3 axis carton sandwich wedge handling system for perfect presentation
  • Automatic carton sandwich wedge eject
  • Can run carton widths up to 110mm with ultra-quick size change
  • Self-diagnostic system
  • Pendant mounted colour touch screen HMI control for full double-sided operation
  • Recipe driven auto machine set-up for tool change
  • Automatic tool clamp for mechanical and electrical connection
  • V style out feed conveyor gives excellent presentation of packs to Laser date coders and labelling equipment
  • E-Seal® - high performance, high precision, high force electric seal system that benefits from an increased seal force of 600% whilst reducing compressed air usage by 92%

Options available

  • Vacuum gas flush for extended shelf life (Standard on GT3SV)
  • Laser printer for on-line date coding
  • Video recognition for packaging verification
  • Label applicator
  • eWON - A machine connection system to deliver real time data and error condition support, remote setup and software upgrades, using a customer's existing IT network
  • Remote live windows based link for production monitoring and trends
  • Down-stream integration with check weigh and metal detector
  • HOT ROD - long-lasting, water resistant seal tool heating element giving reduced energy consumption especially developed for sealing Smooth Wall Foil Trays
  • Sale, Lease Purchase and Rental options available

GT3S / GT3SV Sealing Capacity

up to 65mm wide sandwich pack sizes10 impression tooling - 4" tooling pitch
up to 95mm wide sandwich pack sizes8 impression tooling - 5" tooling pitch
up 110mm wide sandwich pack sizes4 impression tooling - 6" tooling pitch

GT3S / GT3SV Specifications

Length8488mm mimimum - Overall length to suit customer requirements
Weightmodel dependent
Pneumatic supply with eSeal®1.7CFM @ 15 cycles per minute
Electrical supply400 VAC 3 phase (fused at 32A)
Production speedGT3S (seal only) runs at 10 to 15 cycles per minute
GT3SV (vacuum gas flush) runs at 6 to 8 cycles per minute


Transformers are available to accommodate the electrical supplies in different countries









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