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Difference between Incremental & CNC Linear Scale
Latest company news about Difference between Incremental & CNC Linear Scale

Linear Scales is widely used in machine tools since 1970, special in Manual machine, such as Milling machine, Lathe, Grinder, Boring etc.

 

Low cost Incremental Scales is designed and mainly used in digital readout application, it is over 50 years in Industry history and became very reliable products.

 

Since the strong competitive of Linear Scales, also for the price and reliability requirement, hence lots of manufacturer won’t easy to change this Incremental Scale’s structure and glass grating design. Especially high accuracy glass grating manufacture need lots of special equipment investment and technology development.

 

This is the reason why the low cost Incremental Scales can perfect match the manual machine and simple application but not for the CNC and High accuracy measuring machine’s application.

 

  CNC Linear Scales Incremental Scales
Dynamic
performance

1. Movement speed up to: 120 m/min, long time continue work under high speed movement

2. Accelerated speed at least: 2G, can continue work under high speed movement.

3. The structure can withstand the impact and vibration, according to GB/T 2423.5 and GB/T 2423.10 standard test, the acceleration at least: 20 G.

1. Movement speed : 60 m/min

2. No request about the acceleration

3. No request in impact resistance or
    vibration

Durability

Due to the CNC machine axis feed travel distance is so big, hence the mechanical structural and moving distance of Linear Scale’s design life at least more than 10,000 km

No request in mechanical structural
design life of axis feed distance.
Its accuracy due to various reason
and will go down few months later
when use in CNC machine.
Accuracy

The position error within one signal period must be keep at ±2% in one signal period. Such as the Linear Scale’s one signal period is 20µm the position error within one signal period must within ±0.4µm.

No request in the position error within one signal period,it will cause the machine’s poor repeatability, speed and machining accuracy when use in CNC machine.
Anti-pollution
capacity

IP Grade at least to IP 53 protection, if necessary, provide a separate protection device, such as the compressed air cleaned by a micro filter, the IP grade can up to IP 64.

Protection IP 53 is enough.

 

latest company news about Difference between Incremental & CNC Linear Scale  0

 

Pub Time : 2020-03-07 15:23:54 >> News list
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