ROYAL POWER-BLOCK™ I.D. WORKHOLDING
For Milling Applications
- The Royal Power-Block™ I.D. Workholding System enables secure gripping on the internal bore of a workpiece for full external machining access.
- Pullback action draws workpiece securely against a ground locator for precise, consistent z-axis positioning.
- Unit can be mounted to a traditional machining center table and can also be used in 4th and 5th-axis applications.
- Fixture is designed to be actuated via hydraulic pressure and may also be actuated pneumatically for lighter-duty applications (contact us for details).
- For use with all Royal precision mandrels, stops, and sleeves. These items are sold separately.
- Heavy-duty all steel construction with a large double-acting piston provides high clamping force.
- Configured with both side and bottom ports for plumbing flexibility.
- Multiple units can be plumbed in series for single-source actuation.
- Ideal for high-production applications on vertical, horizontal, and five-axis machining centers.
- Tombstone and angle plate compatible.
How to Order:
- Choose the appropriate body assembly based upon your application.
- Choose the appropriate mandrel (models A-E) based upon the diameter you need to All mandrels and bodies share a common mounting interface for full interchangeability.
- If required, choose the appropriate part locator to provide a ground banking surface for the workpiece.
- Choose the appropriate expanding sleeve based upon the mandrel and diameter you need to grip.
Step 1 – Choose Body Assembly
POWER-BLOCK™ I.D. BODY – For Machining Centers
- This body can be mounted to any machining center table, 4th/5th-axis rotary tables, angle plates, tombstones, etc.
- Body weight (as shown) is 22lbs.
- Order mandrels, locators, and sleeves separately.
Royal Power-Block™ I.D. Assembly
Step 2 - Choose Mandrel
- Choose appropriate mandrel model according to gripping range.
- All Royal mandrels have a common precision ground interface for complete compatibility with all Royal I.D. body assemblies.
- Order body assembly, locators, and sleeves separately.
Royal Mandrels
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Mandrel Model | Gripping Range | C | D | E | Max Axial Force (lbs) | Max Clamping Force (lbs) | PART NUMBER | PRICE | |
|---|---|---|---|---|---|---|---|---|---|
| $362.00 | |||||||||
| $362.00 | |||||||||
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| $362.00 | |||||||||
| $362.00 | |||||||||
| $362.00 | |||||||||
| $362.00 | |||||||||
| $540.00 | |||||||||
| $540.00 | |||||||||
| $540.00 | |||||||||
| $540.00 | |||||||||
| $540.00 | |||||||||
| $1,160.00 | |||||||||
| $2,795.00 | |||||||||
| $3,995.00 | |||||||||
| $6,960.00 | |||||||||
| $2,290.00 | |||||||||
| $3,350.00 | |||||||||
| $1,810.00 | |||||||||
| $41.25 | |||||||||
| $24.75 | |||||||||
| $43.75 | |||||||||
| $41.75 | |||||||||
| $1,245.00 | |||||||||
| $1,360.00 | |||||||||
| $2,040.00 | |||||||||
| $2,180.00 | |||||||||
| $367.00 | |||||||||
| $237.00 | |||||||||
| $315.00 | |||||||||
| $482.00 | |||||||||
| $367.00 | |||||||||
| $427.00 | |||||||||
| $615.00 | |||||||||
| $527.00 | |||||||||
| $558.00 | |||||||||
| $913.00 | |||||||||
| $781.00 | |||||||||
| $868.00 | |||||||||
| $24.75 | |||||||||
| $11.25 | |||||||||
| $151.50 | |||||||||
| $767.00 | |||||||||
| $888.00 | |||||||||
| $888.00 | |||||||||
| $799.00 | |||||||||
| $627.00 | |||||||||
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| $683.00 |
Step 3 - Choose Part Locator
- Optional part locator bolts to the front of the mandrel and provides a precision banking surface for the workpiece to locate against.
- Order body assembly, mandrels, and sleeves separately.
Royal Part Locators
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Fits Mandrel Model | Width | Outer Diameter | Part Number | PRICE | |
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| $232.00 | |||||
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| $208.00 | |||||
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| $182.00 | |||||
| $206.00 | |||||
| $304.00 | |||||
| $327.00 | |||||
| $364.00 | |||||
| $295.00 | |||||
| $375.00 | |||||
| $421.00 | |||||
| $364.00 | |||||
| $408.00 | |||||
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| $72.00 | |||||
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| $182.00 | |||||
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| $199.00 | |||||
| $71.00 | |||||
| $82.00 | |||||
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| $13.00 | |||||
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| $172.00 | |||||
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| $146.00 | |||||
| $245.00 | |||||
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| $132.00 | |||||
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| $347.00 | |||||
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| $295.00 | |||||
| $104.00 | |||||
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| $104.00 | |||||
| $117.00 | |||||
| $82.00 | |||||
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| $136.00 | |||||
| $104.00 | |||||
| $117.00 | |||||
| $920.00 | |||||
| $1,040.00 | |||||
| $1,215.00 | |||||
| $21.00 | |||||
| $22.25 | |||||
| $127.50 | |||||
| $21.00 | |||||
| $45.50 | |||||
| $29.00 | |||||
| $21.00 | |||||
| $134.00 |
Step 4 - Choose Expanding Sleeve
- Order expanding sleeves according to mandrel models A thru E.
- All expanding sleeves are fully sealed against coolant and chip penetration.
- Parallel grip ensures full-length part contact for optimum accuracy and grip force.
- All sleeves collapse 0.005" below nominal ground size to ensure easy part loading and unloading.
- Order body assembly, mandrels, and locators separately
Royal Expanding Sleeves - Model A
Royal Expanding Sleeves - Model B
Royal Expanding Sleeves - Model C
Royal Expanding Sleeves - Model D
Royal Expanding Sleeves - Model E
*Not sealed due to limited wall thickness.
Note – sleeves larger than 2-1/2" dia. are 0.28" longer than dimension E and terminate flush with the face of the expanding rod.