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F21-4S
LCC
LCC
F21-4S
CE,FCC
China
4 single-speed buttons
UHF 420~450mhz
single-speed , 4 buttons
Inside
Inside / optional external antenna
IP65
-35°℃~+40℃
Reinforced nylon plastic
100 meters / can be customized to 300 meters
DC/AC 12v,24v,110v,48v,220v,
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As a leading industrial remote control under LCC, it features 4 single-speed buttons, wide voltage compatibility, and robust weather resistance—making it the top choice for construction and engineering projects. With 20 years of market validation, the F21-4S delivers reliable, long-distance control, solving the problem of cumbersome wired operations for concrete pump operators and improving on-site construction efficiency.
Equipped with 4 single-speed buttons (UP, DOWN, EAST, WEST + RO/START), the F21-4S is optimized for concrete pump functions (e.g., adjusting pump arm angle, controlling material discharge). This simplified design reduces operator fatigue and ensures precise control of pump movements.
With an IP65 protection class, the F21-4S is fully waterproof and dustproof—resisting rain, concrete splashes, and construction site dust. This durability ensures consistent performance in harsh outdoor environments, minimizing downtime.
Supporting DC/AC 12V, 24V, 48V, 110V, 220V, the F21-4S works with most concrete pump power systems, eliminating the need for additional voltage converters and reducing setup costs.
The F21-4S operates on UHF 425-446MHz frequency with a standard control distance of 100 meters (customizable to 300 meters). Its 32-bit security code (4.3 billion non-repeating groups) prevents signal interference from other construction equipment, ensuring safe and accurate operation.
The glass fiber shell is stronger than traditional plastic, with excellent drop resistance and high-temperature resistance (-35℃ ~ +80℃). It withstands accidental impacts and extreme temperatures on construction sites, extending the product’s lifespan.
Parameter | Details |
Model | F21-4S |
Brand | LCC |
Voltage | DC/AC 12V, 24V, 48V, 110V, 220V |
Frequency | VHF 310-331MHz, UHF 425-446MHz |
Control Distance | 100m (customizable to 300m) |
IP Class | IP65 |
Temperature Range | -35℃ ~ +80℃ |
Transmitter Antenna | Inside |
Receiver Antenna | Inside / optional external antenna |
Transmitter Power Supply | 2 alkaline No. 5 batteries |
Receiver Output | 10A fully sealed relay |
Security Code | 32-bit (4.3 billion non-repeating groups) |
Receiver Cable Length | 1.3m (customizable) |
Housing Material | Glass fiber |
The F21-4S remote control is tailored for concrete pump and construction equipment, including:
Concrete pump trucks: Controlling the angle and extension of pump arms to deliver concrete to target locations.
Fixed concrete pumps: Managing material suction and discharge for stationary concrete mixing systems.
Small construction cranes: Adjusting lifting (UP/DOWN) and horizontal movement (EAST/WEST) of cranes on job sites.
Material transfer equipment: Controlling conveyor belts for concrete or construction waste in building projects.
Engineering vehicle auxiliaries: Operating auxiliary functions (e.g., hoists) of construction vehicles like excavators or loaders.
Unlike generic remote controls, the F21-4S is optimized for concrete pump operations—ensuring seamless compatibility with pump systems and precise control.
LCC’s 20-year track record in industrial remote controls means the F21-4S is tested and trusted by major construction companies (e.g., China State Construction, EUROCRANE).
Ample on-site inventory ensures fast delivery, while factory-direct sales eliminate middlemen, offering users the best price-value ratio.
Support for custom control distance (50-500m), button stickers (e.g., “PUMP ON/OFF”), and LOGO printing to align with brand or operational needs.
LCC’s service team provides diversified solutions, including on-site technical guidance and quick warranty claims, minimizing user downtime.
The F21-4S meets global construction standards, holding CE, FCC, ISO9001, and SGS certifications. It also has Chinese “Famous Brand” recognition, utility model patents, and strict quality inspection reports. LCC offers a 1-year warranty for the F21-4S, with each unit undergoing rigorous testing (voltage stability, signal strength, waterproof performance) before shipment.
The F21-4S package includes all components for hassle-free installation:
1 x RF transmitter (pre-installed with 2 alkaline No. 5 batteries for long standby)
1 x receiver (with 1.3m customizable cable for easy connection to concrete pumps)
1 x Color-coded wiring diagram (BLACK/BROWN for power, YELLOW for UP, GREEN for DOWN, etc.)
1 x Operation manual (step-by-step installation and safety guidelines)
1 x Security lock (prevents unauthorized use of the remote control)
1 x Certificate of conformity
Upgrade your concrete pump operations with the F21-4S Wireless Concrete Pump Remote Control—reliable, durable, and tailored for construction sites!
Click “Inquire” to ask about bulk pricing, customization (e.g., extended cable length), or technical specifications.
Select “Add to Basket” to order now and enjoy factory-direct pricing + a 1-year warranty.
Contact LCC’s sales team to learn how the F21-4S can improve your on-site efficiency—we’re ready to support your construction projects!
we are CE and SGS certified to strengthen the confidence from customers ,
so we are ideal business partner for you and we are ready to cooperate with you .
As a leading industrial remote control under LCC, it features 4 single-speed buttons, wide voltage compatibility, and robust weather resistance—making it the top choice for construction and engineering projects. With 20 years of market validation, the F21-4S delivers reliable, long-distance control, solving the problem of cumbersome wired operations for concrete pump operators and improving on-site construction efficiency.
Equipped with 4 single-speed buttons (UP, DOWN, EAST, WEST + RO/START), the F21-4S is optimized for concrete pump functions (e.g., adjusting pump arm angle, controlling material discharge). This simplified design reduces operator fatigue and ensures precise control of pump movements.
With an IP65 protection class, the F21-4S is fully waterproof and dustproof—resisting rain, concrete splashes, and construction site dust. This durability ensures consistent performance in harsh outdoor environments, minimizing downtime.
Supporting DC/AC 12V, 24V, 48V, 110V, 220V, the F21-4S works with most concrete pump power systems, eliminating the need for additional voltage converters and reducing setup costs.
The F21-4S operates on UHF 425-446MHz frequency with a standard control distance of 100 meters (customizable to 300 meters). Its 32-bit security code (4.3 billion non-repeating groups) prevents signal interference from other construction equipment, ensuring safe and accurate operation.
The glass fiber shell is stronger than traditional plastic, with excellent drop resistance and high-temperature resistance (-35℃ ~ +80℃). It withstands accidental impacts and extreme temperatures on construction sites, extending the product’s lifespan.
Parameter | Details |
Model | F21-4S |
Brand | LCC |
Voltage | DC/AC 12V, 24V, 48V, 110V, 220V |
Frequency | VHF 310-331MHz, UHF 425-446MHz |
Control Distance | 100m (customizable to 300m) |
IP Class | IP65 |
Temperature Range | -35℃ ~ +80℃ |
Transmitter Antenna | Inside |
Receiver Antenna | Inside / optional external antenna |
Transmitter Power Supply | 2 alkaline No. 5 batteries |
Receiver Output | 10A fully sealed relay |
Security Code | 32-bit (4.3 billion non-repeating groups) |
Receiver Cable Length | 1.3m (customizable) |
Housing Material | Glass fiber |
The F21-4S remote control is tailored for concrete pump and construction equipment, including:
Concrete pump trucks: Controlling the angle and extension of pump arms to deliver concrete to target locations.
Fixed concrete pumps: Managing material suction and discharge for stationary concrete mixing systems.
Small construction cranes: Adjusting lifting (UP/DOWN) and horizontal movement (EAST/WEST) of cranes on job sites.
Material transfer equipment: Controlling conveyor belts for concrete or construction waste in building projects.
Engineering vehicle auxiliaries: Operating auxiliary functions (e.g., hoists) of construction vehicles like excavators or loaders.
Unlike generic remote controls, the F21-4S is optimized for concrete pump operations—ensuring seamless compatibility with pump systems and precise control.
LCC’s 20-year track record in industrial remote controls means the F21-4S is tested and trusted by major construction companies (e.g., China State Construction, EUROCRANE).
Ample on-site inventory ensures fast delivery, while factory-direct sales eliminate middlemen, offering users the best price-value ratio.
Support for custom control distance (50-500m), button stickers (e.g., “PUMP ON/OFF”), and LOGO printing to align with brand or operational needs.
LCC’s service team provides diversified solutions, including on-site technical guidance and quick warranty claims, minimizing user downtime.
The F21-4S meets global construction standards, holding CE, FCC, ISO9001, and SGS certifications. It also has Chinese “Famous Brand” recognition, utility model patents, and strict quality inspection reports. LCC offers a 1-year warranty for the F21-4S, with each unit undergoing rigorous testing (voltage stability, signal strength, waterproof performance) before shipment.
The F21-4S package includes all components for hassle-free installation:
1 x RF transmitter (pre-installed with 2 alkaline No. 5 batteries for long standby)
1 x receiver (with 1.3m customizable cable for easy connection to concrete pumps)
1 x Color-coded wiring diagram (BLACK/BROWN for power, YELLOW for UP, GREEN for DOWN, etc.)
1 x Operation manual (step-by-step installation and safety guidelines)
1 x Security lock (prevents unauthorized use of the remote control)
1 x Certificate of conformity
Upgrade your concrete pump operations with the F21-4S Wireless Concrete Pump Remote Control—reliable, durable, and tailored for construction sites!
Click “Inquire” to ask about bulk pricing, customization (e.g., extended cable length), or technical specifications.
Select “Add to Basket” to order now and enjoy factory-direct pricing + a 1-year warranty.
Contact LCC’s sales team to learn how the F21-4S can improve your on-site efficiency—we’re ready to support your construction projects!
we are CE and SGS certified to strengthen the confidence from customers ,
so we are ideal business partner for you and we are ready to cooperate with you .
