FOB Price
Obtener el precio más reciente100 ~ 10000 / Set ( Negotiable )
|Minimum Order
Place of Origin:
Dongguan,China
Price for Minimum Order:
Minimum Order Quantity:
1 Set
Packaging Detail:
export standard plywood box
Delivery Time:
depends on quantities
Supplying Ability:
1500 Set per Month
Payment Type:
T/T, L/C, Western Union
Persona de contacto Mr. Jack
Houjie town, Dongguan, Guangdong
Manually Worm Gear Screw Jack detailed informations:
A hand wheel is a convenient solution for manual operated a
screw jack or screw jack systems. When using screw jacks in
intermittent positioning applications. Hand wheels are available in
a range of diameters from 5 to *2 inches and customized follow
clients' need.
Hand Wheels do not include a brake. Hand wheels are not recommended
for use with ball screw jacks. When using hand wheel with a screw
jack that can backdrive an additional locking mechanism may be
required to prevent "creep".
For precise position display, a range of digital counters are available for use with screw jacks. These digital counters measure the rotation of the input shaft and display corresponding position in a counter window. The display value per input shaft revolution is variable and is achieved through a series of gear reductions configured to accommodate different jack ratios, lifting screw pitch and travel distances.
Human Force Calculation Formulas:
HF=(G*P)/(R1*R2)
HF:human force (kgs)
G :working load (kgs)
P :screw pitch (mm)
R1:gear ratio
R2:hand wheel radius
Example, working load *0 kgs,the fast speed,manual operated.
Check specification table, *0 kgs with manual operated, use the
smallest model RN*0.5T(pitch=5mm) enough. Fast speed
1/5.Usually,RN*0.5T jack with 5"(**5) diameter hand wheel. How much
about human force?
HF=(*0*5)/(5**2.5)=0.8 kgs.
Every model has three speed ratios.
RN*0.5T,RN*1T,RN*2T,RN*3T,RN*5T,RN**0T and RN**5T
Fast speed: 1 turn 1 mm travels
Mid speed: 1 turn 0.5 mm travels
Low speed: 1 turn 0.*5 mm travel
The larger models screw jacks are not suitable for manual
operated.
NOSEN Projects:
Sluice gate in hydroelectric dam,Powered straighteners,Precision
levelers,Solar tracking jack systems,Large satellite dish antenna
movements,Slitting line,Roll forming machines,Tunnel freezer
systems,Oven lifters,Vacuum furnace lid lifters,Conveyor lifts,Air
dampers,Theatre stages,Glass charging machines,Steel manufacturing
mills,Cold/Hot rolling mills,All tube mills.