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Material: Alloy steel Model: DF (Flange Model)
Packaging & Delivery
Packaging: Packed in plywood case
Shipping: By sea or by air
WDS Zero-backlash Drive Technology
WDS is a brand under Dawlish Precision Machinery Co., Ltd, featured by NC rotary table 4th axis series product. WDS roller drives assist your equipment to realize better speed and precision control, withstand heavy cutting force, overcome external disturbances, and greatly improve transmission efficiency and system stability. Positioning accuracy reaches as good as 10 seconds.
Theory of Operation of the Roller Driver
The Roller Driver uses the roller gear mechanism, one of the finest motion control mechanisms available. The unit is constructed from an input shaft (the roller gearcam) and a turret (output shaft) fitted with roller followers. The roller followers are preloaded against a screw-like input shaft to completely eliminate backlash. Our proprietary adjustment mechanism provides optimum preload. The roller followers planted in the turret use internal roller bearings to transfer torque while rotating. This ensures zero backlash, outstanding precision, and excellent efficiency without causing wear, while providing long-term consistent accuracy.
Accuracy is consistent with no maintenance even after 4.5 million operation cycles. Long-term use is possible without any mechanical maintenance.
Features
- No backlash
- No wear because power transfers through rolling contact
- High accuracy and good efficiency
- Preloadable for high rigidity
|
C170 |
C200 |
C250 |
C315 |
C400 |
|
|
Table Diameter (mm) |
Ф170 |
Ф200 |
Ф250 |
Ф315 |
Ф400 |
|
Table Bore Diameter (mm) |
Ф65H7 |
Ф75H7 |
Ф110H7 |
Ф150H7 |
Ф180H7 |
|
Center Height (mm) |
150 |
165 |
210 |
255 |
300 |
|
Gear Ration |
1/60 |
1/60 |
1/60 |
1/60 |
1/60 |
|
Max Table Speed (rpm) |
50 |
50 |
50 |
50 |
50 |
|
Indexing Accuracy (arc.sec) |
±15 |
±10 |
±10 |
±10 |
±10 |
|
Repeatability (arc.sec) |
9 |
5 |
5 |
5 |
5 |
|
Production Weight (kg) |
70 |
100 |
170 |
280 |
410 |
|
Loading Capacity |
C170 |
C200 |
C250 |
C315 |
C400 |
|
|
Vertical Allowable Load (kg) |
70 |
90 |
110 |
160 |
220 |
|
|
Horizontal Allowable Load (kg) |
145 |
180 |
225 |
315 |
450 |
|
|
Allowable Axial Load (n) |
10422 |
12918 |
27800 |
31572 |
56943 |
|
|
Continuous Holding Torque (n.m) |
151 |
257 |
475 |
690 |
1247 |
|
|
Maximum Output Torque (n.m) |
258 |
471 |
900 |
1332 |
2407 |
|
|
Allowable Bending Moment (n.m) |
489 |
775 |
1989 |
3195 |
7321 |
|
|
Allowable Inertia Moment (kg.m2) |
0.5 |
1.0 |
1.8 |
4.0 |
9.0 |
|
|
*(Maximum table speed and holding torque values are given for a FANUC motor. Maximum output torque should not exceed 10 seconds with 20% duty) |
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|
Options |
C170 |
C200 |
C250 |
C315 |
C400 |
|
Hydraulic Brake Torque (n.m/6Mpa) |
320 |
400 |
890 |
1080 |
2340 |
|
Built-in Rotary Joint (number of ports) |
6 |
6 |
6 |
6 |
6 |
|
External Rotary Joint (number of ports) |
6+1 |
6+1 |
8+1 |
8+1 |
8+1 |
|
Output Rotary Encoder |
RON/RCN200 |
RON/RCN201 |
RON/RCN202 |
RON/RCN203 |
RON/RCN204 |
Service
1. Inquiry (through Alibaba or email) replied within 24 working hours.
2. Customization on the equipment, its accessories (rotary table, motor, etc. ) is available. *Please discuss with us regarding your specific requirements.
3. Factory visit is open to our
4. On-site support is open to our
5. Within two year guarantee time, faulty product could be replaced for free (no one found so far though )
FAQ
Q: What's the lead time after placing order?
A: Normally it takes
Q: What's the Payment Term?
A: T/T, Western unio preferred. Other payment terms are optional.
Q: What's the delivery term?
A: Mainly FOB, CFR & CIF optional.