Description
F21-4SB Remote Controllers ( 4 Pushbuttons single speed) F21-E1B Remote Controllers ( 6 Pushbuttons single speed)
Top-selling model.
It’s a legend from the 1st day it launched in the market.
This product is made for electric hoists, monorails, and every application that needs 2~3 movements.
- Low cost for electronic chain hoist/monorail
- Low power consumption transmitter. 2 AA batteries last up to 4 months
- Extra shock-resistant relay specially for mobile devices(DC model only)
- Over 4.3 billion unique ID codes available.
- Temperature range -35°C ~ +80°C
- Microsoft Windows-based software for easy customization of configuration
- Structure: Glass-Fiber
Transmitter
- Dimension: 164 x 75 x 46 mm
- Weight: 210 g (w/ batteries)
- Power: 2 AA batteries, Alkaline / rechargeable acceptable
Receiver
- Dimension: 185 x 85 x 85 mm
- Weight: 550 g (w/o wire cable)
- Power Supply: 24/48/110/220/380 VAC / 12~24 VDC
About the F21-4SB /e1b Remote Controllers
The F21-4SB from Trunsin is a rugged industrial remote control system for industrial machinery and HMI control panels. Designed for reliable wireless operation in demanding plants and outdoor sites, the F21-4SB helps operators command hoist, travel, and auxiliary functions with clear tactile feedback and configurable pushbutton layouts.
Trunsin supports F21-4SB integration with your receiver architecture, voltage class, channel mapping, and enclosure strategy. Our team can review duty cycle, antenna placement, and emergency-stop logic so the F21-4SB fits crane, hoist, and mobile machinery control standards.
Typical applications
- Overhead cranes and hoists that need reliable wireless control
- Construction machinery with two to twelve discrete functions
- Material handling lines where the operator must move freely
- Mobile equipment that benefits from low-power, shock-resistant receivers
- Industrial automation cells that require configurable pushbutton layouts
- Outdoor installations with wide operating temperature requirements
Production follows in-house machining, assembly, and acceptance testing so each F21-4SB leaves the factory with traceable quality records. If you need drawings, duty-cycle guidance, or signal interface recommendations for the F21-4SB, contact sales@trunsin.com or request a configuration sheet with your target quantity.
Why source the F21-4SB from Trunsin
- Factory-direct customization for handle, axis, output, and sealing options
- Experience across AWP, crane, marine, mining, and mobile machinery programs
- Configuration sheets and engineering support for OEM and aftermarket teams
- Consistent quality from vertically integrated machining and assembly
Related Trunsin models
Need a F21-4SB quote or channel map? Browse the full product range or email Trunsin with your machine type and function list.
