Comparison of characteristics between the hottest

Comparison of characteristics between electric push rod and hydraulic cylinder/cylinder

compared with hydraulic cylinder/cylinder, electric push rod has unique advantages: we do not need complex complete system support (including pumps, pipes, valves, filters, many joints, etc.); We can save a lot of space and work safely and reliably without maintenance; No oil pollution, greatly reduce noise, keep clean/electronic tensile testing machine drive system inspection quiet working environment; The specific performance characteristics are as follows:

self locking performance: due to the low comprehensive transmission efficiency, most of the ordinary tooth lead screw electric push rod and screw elevator have the absolute dynamic load self-locking function, which increases the safety of equipment operation

precision positioning: the comprehensive position accuracy can reach 0, 1mm; Servo electric cylinder position precision can be up to 0.1um

precise control: configure encoder and realize closed-loop precise positioning through frequency converter or controller control; If the accuracy requirement is not high, a potentiometer can be equipped to realize another line control

synchronism: the single reduction motor drives multiple push rods at the same time through mechanical connection to realize synchronous lifting and absolute synchronization

drive system: DC motor 12/24v, single-phase AC motor, three-phase AC motor, no air source/hydraulic source

overload protection: safety clutch can be equipped to prevent overload; It can also be equipped with overload pressure sensor to prevent overload

high load: pushing/pulling force can reach 250 tons

others: simple maintenance, low noise, can work normally in high/low temperature, anti-corrosion/explosion-proof harsh environment

parameter name

planetary push rod

ball push rod

ordinary tooth push rod

principle of motion

integrated assembly of reducer motor and screw rod. This is due to the reduction of particle size. The rotary motion output by the reduction motor drives the lead screw nut to move in a straight line

load capacity

speed

2000mm/s

150mm/s

35mm/s

Life

15 times that of the ball

medium

low

precision positioning

0.001mm

0.1mm

0.04mm

efficiency

> 90%

> 90%

the system is equipped with

power supply, Servo motor or ordinary motor from the perspective of energy conservation and emission reduction, Control system

working system

100%

Maintenance

low maintenance

medium maintenance

low maintenance

parameter name

cylinder

hydraulic cylinder

principle of motion

continuous gas pressure drives the cylinder block to move in a straight line

continuous liquid pressure drives the cylinder block to move in a straight line

load capacity

speed

500mm/s

150mm/s

long service life

long-term correct maintenance

long-term correct Maintenance

precision positioning

0.5mm

0.5mm

efficiency

the system is equipped with

very complex servo valves, pipelines, filters, air compressors

very complex servo valves, pipelines, filters, pump stations

working system

100%

50%

Maintenance

regular inspection, replacement

regular inspection., replace

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