Z6 Bending Beam Load Cell: The Market Standard for Precision and Durability in the 5 kg to 1 t Range
The highly precise Z6 bending beam load cell, first developed by HBM in 1972, has been continuously optimized for decades. Based on strain gauge technology, the Z6 is available in nine versions with maximum capacities ranging from 5 kg to 1 ton.
With its characteristic bellows design, this load cell has become a worldwide standard and has been sold in millions of units.
The Z6 is used in a wide range of weighing systems, including platform and conveyor scales, batching and level measurement, and tank weighing modules. The metal bellows protect the load cell from moisture ingress. It is optimized for parallel connection and is also available in an explosion-proof version certified to IECEx and ATEX standards.
| Code | Maximum capacity | Accuracy class | Minimum verification interval (Vmin) | Special feature |
|---|---|---|---|---|
| 1-Z6FC3/1T | 1 t | C3 | 90 g | None |
| 1-Z6FC3/10KG-1 | 10 kg | C3 | 0.9 g | None |
| 1-Z6FC3/20KG-1 | 20 kg | C3 | 1.8 g | None |
| 1-Z6FC3/30KG-1 | 30 kg | C3 | 2.49 g | None |
| 1-Z6FC3/50KG-1 | 50 kg | C3 | 4.5 g | None |
| 1-Z6FC3/100KG-1 | 100 kg | C3 | 9 g | None |
| 1-Z6FC3/200KG-1 | 200 kg | C3 | 18 g | None |
| 1-Z6FC3/500KG-1 | 500 kg | C3 | 45 g | None |
| 1-Z6FC4/20KG-1 | 20 kg | C4 | 1.32 g | None |
| 1-Z6FC4/30KG-1 | 30 kg | C4 | 1.98 g | None |
| 1-Z6FC4/50KG-1 | 50 kg | C4 | 3.3 g | None |
| 1-Z6FC4/100KG-1 | 100 kg | C4 | 6.6 g | None |
| 1-Z6FC4/200KG-1 | 200 kg | C4 | 13.2 g | None |
| 1-Z6FC4/500KG-1 | 500 kg | C4 | 33 g | None |
| 1-Z6FC6/20KG-1 | 20 kg | C6 | 1.32 g | None |
| 1-Z6FC6/30KG-1 | 30 kg | C6 | 1.98 g | None |
| 1-Z6FC6/50KG-1 | 50 kg | C6 | 3.3 g | None |
| 1-Z6FC6/100KG-1 | 100 kg | C6 | 6.6 g | None |
| 1-Z6FC6/200KG-1 | 200 kg | C6 | 13.2 g | None |
| 1-Z6FD1/1T | 1 t | D1 | 360 g | None |
| 1-Z6FD1/5KG-1 | 5 kg | D1 | 1.8 g | None |
| 1-Z6FD1/10KG-1 | 10 kg | D1 | 3.6 g | None |
| 1-Z6FD1/20KG-1 | 20 kg | D1 | 7.2 g | None |
| 1-Z6FD1/30KG-1 | 30 kg | D1 | 10.8 g | None |
| 1-Z6FD1/50KG-1 | 50 kg | D1 | 18 g | None |
| 1-Z6FD1/100KG-1 | 100 kg | D1 | 36 g | None |
| 1-Z6FD1/200KG-1 | 200 kg | D1 | 72 g | None |
| 1-Z6FD1/500KG-1 | 500 kg | D1 | 180 g | None |
| 1-Z6GC3/500KG | 500 kg | C3 | 45 g | None |
| K-Z6- | 5 kg, 10 kg, 20 kg, 30 kg, 50 kg, 100 kg, 200 kg, 500 kg, 1 t | C3 | 90 g, 0.9 g, 1.8 g, 2.49 g, 4.5 g, 9 g, 18 g, 45 g, 1.32 g, 1.98 g, 3.3 g, 6.6 g, 13.2 g, 33 g, 1.8 g, 3.6 g, 7.2 g, 10.8 g, 18 GRM, 36 g, 72 g, 180 g, 360 g | None |
| K-Z6-P | 20 kg, 30 kg, 50 kg, 100 kg, 200 kg, 500 kg | C3 | 1.8 GRM, 2.49 GRM, 4.5 GRM, 9 GRM, 45 GRM | Plug connector |
Specifications
Accuracy Class (OIML): up to C6
Rated Load: 5 kg to 1 t
Protection Class: IP68
Precision
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Accuracy classes D1, C3, C4, and C6 according to OIML
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Robust 6-wire configuration for resistance variation compensation
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Excellent off-center load performance due to low sensitivity tolerance and low output resistance
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Certified precision load cell technology ensures accurate measurement results
Robustness
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Electropolished stainless steel measuring body
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IP68 protection (100 hours at a depth of 1 m)
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Fully hermetically sealed with metal bellows
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EMC tested in accordance with EN 45501:2015
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Load cell and installation accessories made of stainless steel
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Delivers consistently reliable weighing performance
Flexibility
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Wide range of rated capacities: 5 kg, 10 kg, 20 kg, 30 kg, 50 kg, 100 kg, 200 kg, 500 kg, 1 t
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Weighing approvals: OIML, NTEP (USA), NMIA (Australia)
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Explosion-proof versions available: IECEx/ATEX, FM (USA)
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Cable lengths from 3 m to 12 m; 6-wire configuration allows precise cutting to required length
Versatile Application
Designed for high adaptability, the Z6 load cell is suitable for a wide range of weighing environments thanks to its flexibility and multifunctional capabilities.
| Type | Bending beam |
| Application | Animal Weighing (Lifestock), Checkweighing, Dynamic Filling / Dosing, Static Filling/Dosing, Silo/Tank weighing |
| Maximum capacity | 100 kg, 1 t, 10 kg, 200 kg, 30 kg, 50 kg, 20 kg, 500 kg, 5 kg |
| Accuracy class | C3, C4, C6, D1 |
| Degree of protection | IP68 |
| Minimum verification interval (Vmin) | 9 g, 90 g, 0.9 g, 18 g, 2.49 g, 4.5 g, 1.8 g, 45 g, 6.6 g, 1.32 g, 13.2 g, 1.98 g, 33 g, 3.3 g, 3.6 g, 36 g, 72 g, 10.8 g, 360 g, 7.2 g, 180 g, 1.8 GRM, 2.49 GRM, 4.5 GRM, 9 GRM, 45 GRM, 18 GRM |
| Material | Stainless steel with protective coating |
| Certification | OIML, NTEP (US), ATEX/IECEx |
| Maximum platform size | n/a |
| Output signal | Passive (mV/V) |
| Special feature | None, Plug connector |















