A limiter for a Tower Crane is a safety device that is installed to prevent the crane from operating beyond its maximum load capacity or from moving beyond its designated working area. It typically consists of sensors, control systems, and alarms to ensure safe operation.
Hoisting Limiter,Limit Switch for Tower Crane,Load Moment Limiter SHEN YANG BAOQUAN BUSINESS CO., LTD , https://www.syconstructionhoist.com
*Adopting PWM control technology,constant current,accurate current control.
*High frequency arc starting,no matter the current is high or low,the arc starting rate high.
*DC AC tig welding machine steady welding current,esthetic shaping of welding seam.
*Adjustable pulse current and pulse frequency, apply to many kinds of welding technology.
*ACDC tig welder one machine serves several purposes,saving the welding cost.
*The machine can automatic welding,Optional cycling water tank.
*Can be used to weld aluminium, stainless steel,carbon steel,alloyed steel,copper,titanium etc.Â
Model:
AC DCÂ TIG-200P
Input power voltage frequency(V,Hz):
AC220(single phase)±15%,50/60
Rated input power capacity(KVA):
4.5
No-load voltage(V):
56
Output current range.(A): Â
20-200
Rated output voltage(V):
18
Duty cycle (%)(25ºC):
60
No-load loss(W):
40
Arc-starting:
HFÂ
Efficiency(%):Â
85
Power factor (COSφ):Â
0.93
Insulation class:
F
Weight(KG):
20
Overall dimension(mm):
498×328×302
Case protection degree:
IP21S
Pre-flow time(s):
0-2
Duty ratio(%): Â
20-8
Current down-slope time(s):
0-5
Post-flow time(s):
2-10
Remote interface:
without
AC welding thickness(mm):    Â
0.5-5
Â
Pulse DC AC aluminium Alloy welding machine product Characteristics:
*Adopting PWM control technology,constant current,accurate current control.
*High frequency arc starting,no matter the current is high or low,the arc starting rate high.
*DC AC tig welding machine steady welding current,esthetic shaping of welding seam.
*Adjustable pulse current and pulse frequency, apply to many kinds of welding technology.
*ACDC tig welder one machine serves several purposes,saving the welding cost.
*The machine can automatic welding,Optional cycling water tank.
*Can be used to weld aluminium, stainless steel,carbon steel,alloyed steel,copper,titanium etc.Â
Model:
AC DCÂ TIG-200P
Input power voltage frequency(V,Hz):
AC220(single phase)±15%,50/60
Rated input power capacity(KVA):
4.5
No-load voltage(V):
56
Output current range.(A): Â
20-200
Rated output voltage(V):
18
Duty cycle (%)(25ºC):
60
No-load loss(W):
40
Arc-starting:
HFÂ
Efficiency(%):Â
85
Power factor (COSφ):Â
0.93
Insulation class:
F
Weight(KG):
20
Overall dimension(mm):
498×328×302
Case protection degree:
IP21S
Pre-flow time(s):
0-2
Duty ratio(%): Â
20-8
Current down-slope time(s):
0-5
Post-flow time(s):
2-10
Remote interface:
without
AC welding thickness(mm):    Â
0.5-5
Â
The load limiter is designed to monitor the load being lifted by the crane and automatically stop the crane's movement if the load exceeds the specified limit. It helps prevent overloading, which can lead to structural failure or accidents.
The radius limiter is used to restrict the crane's movement within a specific working area. It ensures that the crane does not extend beyond its designated radius, preventing it from colliding with nearby structures or obstacles.
Both types of limiters are essential safety features in tower cranes to protect workers, equipment, and the surrounding environment. They help ensure that the tower crane operates within its safe working limits and minimize the risk of accidents or damage.
Pulse AC/DC Aluminium Alloy Welding Machine
Model NO.: tig200p
Name: Aluminium Alloy Welding Machine
Mosfet: 20PCS
Diodes: 20PCS
Trademark: As require
Transport Package: Carton
Specification: 498x328x302mm
Origin: Shenzhen China
HS Code: 85153900
Model NO.: tig200p
Name: Aluminium Alloy Welding Machine
Mosfet: 20PCS
Diodes: 20PCS
Trademark: As require
Transport Package: Carton
Specification: 498x328x302mm
Origin: Shenzhen China
HS Code: 85153900
Pulse DC AC aluminium Alloy welding machine product Characteristics: