The Bolt ‘N’ Go flight system is a revolutionary assembly method for drop forged chains. Link and flight assembly is made easy by using a standard bolt and mechanical lock nut with a high strength, heat treated hollow pin. There are no circlips and no intricate assembly is required. There is no welding of flights, no need to remove chain from the conveyor for installation, and no issues with strength. Just bolt the links and the flights together. It’s easy, simple and reliable!
- Easy and simple assembly on site or in the shop
- Precise calculated flight bending force
- Exceptional low noise levels
- Bolt-on Flight; no welding required
- Guaranteed, reliable pin attachment
- Condensed storage and shipping
- Reduced costs
- Smooth running
- Nylon Flights
Specifications
| Min. Breaking Load | Case Depth | Weight/Link | P | H | T | W | M | D | ||
| (kN) | (kg) | (mm) | (mm) | (mm) | (mm) | (mm) | (mm) | |||
| 4B102BNA | 180 | 0.5 mm | 0.38 kg | 102 | 36 | 7 | 28 | 12 | 14 | |
| NEW | 4B125BNA | 200 | 0.6 mm | 0.70kg | 125 | 35 | 10 | 36 | 15 | 16 |
| 4B142BNA | 300 | 0.7 mm | 1.08 kg | 142 | 50 | 12 | 42 | 18.7 | 25 | |
| 4B142BHA | 450 | 0.7 mm | 1.76 kg | 142 | 50 | 16.5 | 62 | 28.5 | 25 | |
| 4B160BNA* | 350 | 0.8 mm | 1.30 kg | 160 | 44.5 | 13 | 42 | 19.5 | 20 | |
| * On request. |
Contact 4B to enquire about other Bolt 'n' Go chain sizes on request.
Downloads
Accessories
Manganese Wear Rails
Specifically designed for the use with drop forged, heat-treated chain links, 4B Manganese Steel Wear Rails provide a low friction, highly wear-resistant ‘running surface’ for conveyor drag chains.
They extend the life of chain conveyor casing bottom plates (and other areas, depending on machine design, handled material and application), protecting against costly wear and premature casing panel replacement.
Videos
Design Services
Chain Conveyor Design Service (4BAP)
Chain Conveyor Design Service (4BAP)
Take advantage of our free design service for chain conveyors.
Whether you want a new chain conveyor or you want to optimize an existing chain conveyor, our engineers at 4B can help you.
To get a free chain conveyor calculation
Please fill this form in as accurately as possible to allow us to deal with your enquiry more effectively.

Take advantage of our free design service for chain conveyors.
Whether you want a new chain conveyor or you want to optimize an existing chain conveyor, our engineers at 4B can help you.
To get a free chain conveyor calculation
Please fill this form in as accurately as possible to allow us to deal with your enquiry more effectively.

