Shredding and sorting systems for wood and annual plants, made in Switzerland.
GT Zesor AG
Messen (Headquarters) · Grafenried (Manufacturing and Assembly Hall)New on Amplifa
About GT Zesor
GT Zesor AG, based in Messen (Switzerland), specialises in shredding and sorting systems for wood and annual plants and can look back on more than 50 years of history. From K. Gisiger-Technik, founded in 1971, today's public limited company emerged in 2004. The company manufactures core products such as the universal chip spreading machine (USZ), the bladeless shredder (HZ), disc and roller sorters, magnetic and heavy-part separators, as well as glue blending machines, dosing devices and conveying elements with a high level of in-house manufacturing depth at its sites in Messen and Grafenried. In addition to worldwide distribution via sales partners in the APAC region and North/South America, the company carries out process-engineering shredding and sorting trials on its own test systems, prepares expert reports and optimisation analyses, and performs overhauls, repairs and maintenance of process-engineering plants. Its customers come, among others, from wood processing and chipboard production, the pellet industry, animal feed production, cement manufacturing, special waste processing and recycling. The vision is the holistic material or energetic use of renewable raw materials and residual materials.
- Site
- Messen
- Processes
- Shredding with hammer mill (universal chip spreading machine USZ, wet and dry processing), Shredding with bladeless shredder (HZ), Sorting with disc sorter (coarse and fine sorting), Sorting with roller sorter (coarse-roller and micro-roller sorters), Separation of ferromagnetic contaminants with magnetic separator (magnetic box MAG), Separation of heavy particles with pneumatic heavy-part separator (PSA), Glue blending and mixing of chips (double-trough glue blending machine mixer M), Dosing and width distribution (dosing and width distribution devices with discharge screws)
- Materials
- Wood, Wood chips, Sawdust, Residual wood from forestry and wood processing, Packaging and waste wood, Bark, Organic waste, Grain
- Certificates
- Test systems for shredding and sorting trials
- Founded
- 1971
- Industries
- Wood processing and chipboard production, Pellet industry, Animal feed production, Ready-mix mortar and cement manufacturing, Special waste processing, Horticulture (peat substitute/soils)
- 01
Consulting and plant concepts
- 02
Process-engineering shredding and sorting trials
- 03
Engineering/Design
- 04
Production and assembly
- 05
Worldwide commissioning of complete plants
- 06
Certification and training
- 07
Overhaul, maintenance and repairs
Materials Processed and Processes
Residual wood from forestry and wood processing
Processing into boards, moulded parts, fuel chips and heating pellets.
Packaging and waste wood
Breakdown into boards, moulded parts and fuels, even with metallic contamination.
Bark and organic waste
Processing into peat substitute products and soils for horticulture.
Sawdust and wood chips
Use as clay additives to increase the porosity of bricks.
Grain
Shredding into foodstuffs and animal feed.
Annual plants
Processing into animal feed, board materials, compost and fuels.
Recycled wood
Shredding with robust shredders into chips that can be cleaned.
Locations
Messen
CHHeadquarters
- Materials
- Wood, wood chips, sawdust, residual wood, packaging and waste wood, bark, grain, annual plants, recycled wood
- Universal chip spreading machine (USZ)
- Bladeless shredder (HZ)
- Disc and roller sorters
- Magnetic separator (MAG)
- Pneumatic heavy-part separator (PSA)
- Double-trough glue blending machine (M)
Grafenried
CHManufacturing and assembly hall (since 2010)
- Production and assembly facilities
Products and Plant Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Shredding with hammer mill (universal chip spreading machine USZ, wet and dry processing)Engineering | – | – | – | – | Wood, Wood chips, Residual wood, Packaging and waste wood, Bark, Grain, Annual plants |
| Shredding with bladeless shredder (HZ)Engineering | – | – | – | – | Wood, Recycled wood |
| Sorting with disc sorter (coarse and fine sorting)Engineering | – | up to 2200 mm | – | – | Recycled wood, heterogeneous materials |
| Sorting with roller sorter (coarse-roller and micro-roller sorters)Engineering | – | up to 2200 mm | – | – | Recycled materials, sand-containing fine material |
| Separation of ferromagnetic contaminants with magnetic separator (magnetic box MAG)Engineering | – | up to 2200 mm | – | – | Wood chips |
| Separation of heavy particles with pneumatic heavy-part separator (PSA)Engineering | – | up to 2200 mm | – | – | Wood chips |
| Glue blending and mixing of chips (double-trough glue blending machine mixer M)Engineering | – | – | – | – | Core layer and surface layer chips, Glue, Wood chips |
| Dosing and width distribution (dosing and width distribution devices with discharge screws)Engineering | – | Screw length up to 8 m × max 2200 mm | – | – | Wood chips |
| Conveying (chain conveyors, screws, bucket elevators, pneumatic systems)Engineering | – | – | – | – | Wood chips, Wood chips (chipped) |
| Process-engineering shredding and sorting trials on test systemsTesting | – | – | – | – | customer-specific input materials |
| Overhaul and revision of process-engineering plants, repairs and maintenanceAssembly | – | – | – | – | – |
| Production and assembly of plants as well as worldwide commissioning of complete plantsAssembly | – | – | – | – | – |
| Consulting, plant concepts, project planning and execution, certification and trainingEngineering | – | – | – | – | – |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Hammer mill / Universal chip spreading machine (USZ) | GT Zesor AG (Gisiger Technik) USZ | – | Capacity up to 20 t atro/h, drive up to 710 kW | – | Messen / Grafenried, Switzerland |
| Bladeless shredder | GT Zesor AG HZ | – | Capacity up to 50 t/h, drive up to 1000 kW | – | Messen / Grafenried, Switzerland |
| Disc sorter / fine disc sorter | GT Zesor AG | – | Working width up to 2200 mm, capacity up to 50 t/h | – | Messen / Grafenried, Switzerland |
| Coarse-roller and micro-roller sorters | GT Zesor AG | – | Working width up to 2200 mm, capacity up to 50 t/h | – | Messen / Grafenried, Switzerland |
| Magnetic separator (magnetic box) | GT Zesor AG MAG | – | Width up to 2200 mm | – | Messen / Grafenried, Switzerland |
| Pneumatic heavy-part separator | GT Zesor AG PSA | – | Width up to 2200 mm | – | Messen / Grafenried, Switzerland |
| Double-trough glue blending machine (mixer) | GT Zesor AG M | – | Throughput up to 50 t/h | – | Messen / Grafenried, Switzerland |
| Dosing and width distribution devices with surge hopper | GT Zesor AG | – | up to five discharge screws, screw length up to 8 m, width max. 2200 mm | – | Messen / Grafenried, Switzerland |
| Conveying elements (chain conveyors, screws, bucket elevators, pneumatic systems) | GT Zesor AG | – | – | – | Messen / Grafenried, Switzerland |
Additional services
Reference customers
Quality
According to the company, quality is reflected in long-term partnerships; the machines are characterised by energy efficiency, durability and low wear. Process-engineering shredding and sorting trials on the company's own test systems enable reliable findings even in early project phases.
| Evidence | Messen |
|---|---|
| Test systems for shredding and sorting trials |
History
- 1971
Founding of the sole proprietorship K. Gisiger-Technik in Messen, Switzerland.
- 1974
First hammer mill for grain brought to market.
- 1978
Further development of the hammer mill into the universal chip spreading machine for wood.
- 1985
Development of the first bladeless shredder for fibrous, long wood chips.
- 1988
Development of the two-shaft glue blending machine with large double mixing chamber.
- 1991
Development of the first shredder for recycled wood.
- 1998
Development of sorting machines for recycled materials.
- 2004
Restructuring of the management: founding of GT Zesor AG from Gisiger Technik.
- 2010
Construction and occupation of the new manufacturing and assembly hall in Grafenried.
- 2013
Further development of the universal chip spreading machine product range.
- 2021
Handover of management to the third generation.