The 843 steel-backed plastic chain plate combines a carbon steel or stainless steel base chain with a POM top surface, delivering a hybrid conveying solution for industrial applications where all-plastic chains fall short on load capacity and all-steel chains risk product surface damage. With a working load of 2700 N (carbon steel version), the steel backing resists bending under heavy pallets and stamped metal components, while the plastic top layer prevents scratching on machined or painted surfaces. The fully encapsulated plastic coating shields the steel core from moisture, coolants, and cleaning agents. Manufactured under ISO 9001 quality controls, the 843 series is available in widths from 28.6 mm to 82.6 mm and integrates with standard sprocket drives across automotive, appliance, and food processing lines.
843 Chain Plate Load Capacity and Structural Rigidity
Steel Core Reinforcement for Heavy-Duty Conveying
The steel backing enables the 843 chain plate to support working loads up to 2700 N with carbon steel construction and 1900 N with stainless steel construction — significantly higher than pure plastic alternatives. The steel core maintains dimensional stability under heavy or uneven loads, preventing chain sag and ensuring consistent tracking on long conveyor runs. This structural property matters in automotive assembly, metal stamping, and heavy packaging environments where palletized loads and cast components are routinely transferred between workstations.
Dimensional Stability Across Temperature Ranges
The 843 series operates within a temperature range of -40°C to +90°C, covering cold storage environments as well as warm production halls. The steel backbone minimizes thermal expansion differences compared with all-plastic designs, reducing the risk of pitch variation and sprocket misalignment during temperature shifts. Each width specification is tested for load retention at both low and high temperature extremes.
843 Plastic Top Surface Product Protection
The POM top surface eliminates metal-to-product contact, preventing scratches, dents, and abrasion marks on painted panels, machined surfaces, and polished housings. This is directly relevant for appliance assembly lines where refrigerator and washing machine cabinets move through finishing stages, as well as automotive plants transporting stamped body panels and transmission housings. The surface remains smooth even after prolonged contact with metal parts.
Self-Lubricating Operation with Reduced Friction
POM exhibits self-lubricating properties that reduce sliding friction between the chain plate and conveyed products without requiring grease or oil. This characteristic keeps product surfaces clean and reduces the need for periodic lubrication maintenance. Maximum operating speed reaches 80 m per minute under lubricated conditions and 50 m per minute under dry conditions, giving production planners a defined performance envelope for line speed calculations.
843 Hybrid Chain Corrosion and Chemical Resistance
Encapsulated Steel Core Protection
The plastic layer fully encapsulates the steel core, creating a barrier against moisture, mild acids, alkalis, and water-based coolants. Unlike exposed steel chains, the 843 design does not require periodic anti-corrosion treatment and is suitable for washdown environments in food and beverage processing. Stainless steel base chain variants are available for applications with higher exposure to corrosive agents or stricter hygiene requirements.
Compatibility with Cleaning Regimens
The smooth plastic surface and fully enclosed steel structure support routine cleaning with water-based detergents and sanitizing solutions. Drainage and cleaning access are designed into the chain plate geometry, reducing residue buildup in food processing and pharmaceutical conveying applications where hygiene audits are standard practice.
843 Chain Plate Technical Specifications and Dimensions
Plastic Chain Plate Parameters (FTC-843)
Chain plate model | Chain plate width W (mm) | Weight of the net chain (kg/m) | Chain plate material | Workload (N/21°C) | Pin shank material |
FTC-843/80-K118 | 28.6 | 0.77 | POM | 500 | SUS |
FTC-843/80-K138 | 34.9 | 0.83 | POM | 500 | SUS |
FTC-843/80-K200 | 50.8 | 0.90 | POM | 500 | SUS |
FTC-843/80-K275 | 70.0 | 0.99 | POM | 500 | SUS |
FTC-843/80-K325 | 82.6 | 1.05 | POM | 500 | SUS |
Note: Chain plate pitch 25.4; Back bending radius R0102.
Bottom Chain Parameters (CC-SC-08A-843)
Bottom chain material | Model | Chain plate width (mm/inch) | Maximum load (N) | Weight (kg/m) |
Carbon steel | 843-K118 | 28.6/1.18 | 2700 | 0.82 |
843-K138 | 34.9/1.38 | 2700 | 0.83 |
843-K200 | 50.8/2.00 | 2700 | 0.89 |
843-K275 | 70.0/2.75 | 2700 | 0.95 |
843-K325 | 82.6/3.25 | 2700 | 1.03 |
Stainless steel | 843-K118 | 28.6/1.18 | 1900 | 0.82 |
843-K138 | 34.9/1.38 | 1900 | 0.83 |
843-K200 | 50.8/2.00 | 1900 | 0.89 |
843-K275 | 70.0/2.75 | 1900 | 0.95 |
843-K325 | 82.6/3.25 | 1900 | 1.03 |
Sprocket Parameters (CC-SC-LL-843)
Teeth | Axle center aperture (mm/inch) | Pitch diameter of gear wheel (mm/inch) | Gearwheel diameter (mm/inch) | Axis hole outside diameter (mm/inch) | General thickness of gear wheel (mm/inch) | The tooth checks thickness (mm/inch) |
17 | 12 / 0.47 | 69.12 / 2.72 | 74 / 2.91 | 52 / 2.05 | 28 / 1.10 | 7.2 / 0.28 |
18 | 12 / 0.47 | 73.14 / 2.88 | 78 / 3.07 | 56 / 2.20 | 28 / 1.10 | 7.2 / 0.28 |
19 | 12 / 0.47 | 77.16 / 3.04 | 82 / 3.23 | 60 / 2.36 | 28 / 1.10 | 7.2 / 0.28 |
20 | 12 / 0.47 | 81.18 / 3.20 | 86 / 3.39 | 64 / 2.52 | 28 / 1.10 | 7.2 / 0.28 |
21 | 12 / 0.47 | 85.21 / 3.35 | 90 / 3.54 | 68 / 2.68 | 28 / 1.10 | 7.2 / 0.28 |
22 | 12 / 0.47 | 89.24 / 3.51 | 94 / 3.70 | 70 / 2.76 | 28 / 1.10 | 7.2 / 0.28 |
23 | 14 / 0.55 | 93.27 / 3.67 | 98 / 3.86 | 70 / 2.76 | 28 / 1.10 | 7.2 / 0.28 |
24 | 14 / 0.55 | 97.30 / 3.83 | 102 / 4.02 | 70 / 2.76 | 28 / 1.10 | 7.2 / 0.28 |
25 | 14 / 0.55 | 101.33 / 3.99 | 106 / 4.17 | 70 / 2.76 | 28 / 1.10 | 7.2 / 0.28 |
FAQ About 843 Chain Plate
What material options are available for the 843 steel-backed plastic chain plate?
The top surface is POM plastic. The base chain is available in either carbon steel (2700 N working load) or stainless steel (1900 N working load). Stainless steel variants are selected for corrosive or high-hygiene environments such as food processing or pharmaceutical lines.
What width sizes does the 843 series offer?
The 843 series covers seven standard widths from 28.6 mm (K118) to 82.6 mm (K325), including intermediate sizes at 34.9 mm, 50.8 mm, and 70.0 mm. Custom widths and configurations can be discussed with the engineering team based on specific application requirements.
Can the 843 chain plate be used in washdown or wet environments?
Yes. The fully encapsulated plastic coating protects the steel core from moisture and water-based cleaning agents. For applications with frequent or high-pressure washdown, the stainless steel base chain variant provides additional corrosion resistance compared with carbon steel.
What is the operating temperature range of the 843 chain plate?
The 843 series operates within a range of -40°C to +90°C, covering cold storage areas as well as standard production hall temperatures. Consult the engineering team for applications that approach either end of the range to confirm load derating factors.
Are matching sprockets and system components available?
Yes. The 843 system includes matching sprockets (17 to 25 teeth), turning chain variants (1843TAB series), LC2 main beam profiles, and wear-resistant strips. Sourcing the complete system from one supplier ensures dimensional compatibility and simplifies commissioning.
What is the lead time and minimum order quantity for the 843 chain plate?
Standard sizes are typically available from stock or with short production lead times. Custom configurations, special materials, and large-volume orders are quoted on a project basis. Contact the sales team with your specific width, length, and material requirements for a detailed quotation and lead time estimate.
