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 | |
|---|---|---|---|---|---|---|---|---|---|
| $1,035.00 | |||||||||
| $1,315.00 | |||||||||
| $1,760.00 | |||||||||
| $3,395.00 | |||||||||
| $202.00 | |||||||||
| $202.00 | |||||||||
| $202.00 | |||||||||
| $982.00 | |||||||||
| $982.00 | |||||||||
| $1,285.00 | |||||||||
| $1,760.00 | |||||||||
| $3,295.00 | |||||||||
| $1,295.00 | |||||||||
| $1,295.00 | |||||||||
| $1,610.00 | |||||||||
| $1,685.00 | |||||||||
| $1,285.00 | |||||||||
| $1,285.00 | |||||||||
| $1,595.00 | |||||||||
| $1,685.00 | |||||||||
| $1,330.00 | |||||||||
| $1,330.00 | |||||||||
| $1,685.00 | |||||||||
| $1,785.00 | |||||||||
| $1,145.00 | |||||||||
| $1,145.00 | |||||||||
| $1,395.00 | |||||||||
| $1,475.00 | |||||||||
| $2,950.00 | |||||||||
| $3,620.00 | |||||||||
| $1,295.00 | |||||||||
| $1,295.00 | |||||||||
| $1,610.00 | |||||||||
| $1,685.00 | |||||||||
| $1,295.00 | |||||||||
| $1,295.00 | |||||||||
| $1,610.00 | |||||||||
| $1,685.00 | |||||||||
| $1,180.00 | |||||||||
| $1,180.00 | |||||||||
| $1,395.00 | |||||||||
| $1,475.00 | |||||||||
| $2,950.00 | |||||||||
| $3,620.00 | |||||||||
| $1,695.00 | |||||||||
| $2,070.00 | |||||||||
| $2,140.00 | |||||||||
| $1,525.00 | |||||||||
| $1,815.00 | |||||||||
| $1,880.00 | |||||||||
| A | 0.479–0.640 | 1.57 | 0.57 | 0.87 | 1570 | 2670 | $2,140.00 | ||
| B | 0.620 –0.901 | 1.81 | 0.59 | 1.06 | 2245 | 3820 | $2,140.00 | ||
| C | 0.870 –1.151 | 2.05 | 0.61 | 1.26 | 2695 | 4580 | $2,140.00 | ||
| D | 1.120 –1.651 | 2.32 | 0.60 | 1.50 | 4045 | 6875 | $2,140.00 | ||
| E | 1.620 –3.276 | 2.52 | 0.58 | 1.69 | 5170 | 8785 | $2,140.00 | ||
| $432.00 | |||||||||
| $432.00 | |||||||||
| $497.00 | |||||||||
| $497.00 | |||||||||
| $497.00 | |||||||||
| $32.75 | |||||||||
| 16,860 | $6,895.00 | ||||||||
| 18,300 | $7,880.00 | ||||||||
| 18,300 | $8,050.00 | ||||||||
| 18,300 | $7,620.00 | ||||||||
| 18,300 | $7,880.00 | ||||||||
| 18,300 | $8,120.00 | ||||||||
| 26,300 | $8,290.00 | ||||||||
| 26,300 | $7,880.00 | ||||||||
| 26,300 | $8,120.00 | ||||||||
| 26,300 | $8,430.00 | ||||||||
| 26,300 | $7,880.00 | ||||||||
| 26,300 | $7,880.00 | ||||||||
| 13,600 | $7,260.00 | ||||||||
| 13,600 | $7,260.00 | ||||||||
| 13,600 | $6,960.00 | ||||||||
| 13,600 | $7,260.00 | ||||||||
| 19,800 | $2,710.00 | ||||||||
| 19,800 | $2,910.00 | ||||||||
| 19,800 | $3,160.00 | ||||||||
| 26,340 | $2,820.00 | ||||||||
| 26,340 | $3,050.00 | ||||||||
| 26,340 | $3,750.00 | ||||||||
| 15,750 | $2,490.00 | ||||||||
| 15,750 | $2,780.00 | ||||||||
| 15,750 | $2,710.00 | ||||||||
| 15,750 | $2,970.00 | ||||||||
| 15,750 | $2,350.00 | ||||||||
| 15,750 | $2,090.00 | ||||||||
| 15,750 | $3,190.00 | ||||||||
| $70.00 | |||||||||
| $134.00 | |||||||||
| $192.00 | |||||||||
| $230.00 | |||||||||
| $374.00 | |||||||||
| $34.75 | |||||||||
| $33,905.00 | |||||||||
| $33,905.00 | |||||||||
| $33,905.00 | |||||||||
| $33,905.00 |
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 | |
|---|---|---|---|---|---|
| $35.50 | |||||
| $51.75 | |||||
| $1,340.00 | |||||
| $1,470.00 | |||||
| $1,695.00 | |||||
| $2,060.00 | |||||
| $1,495.00 | |||||
| $252.00 | |||||
| $199.00 | |||||
| $277.00 | |||||
| $3,195.00 | |||||
| $705.00 | |||||
| $255.00 | |||||
| $255.00 | |||||
| $255.00 | |||||
| $357.00 | |||||
| $587.00 | |||||
| $32.25 | |||||
| $39.75 | |||||
| $75.50 | |||||
| $57.50 | |||||
| $4,195.00 | |||||
| $4,995.00 | |||||
| $5,695.00 | |||||
| $4,485.00 | |||||
| $4,820.00 | |||||
| $5,800.00 | |||||
| $8,970.00 | |||||
| $30.75 | |||||
| $30.75 | |||||
| $28.50 | |||||
| $42.25 | |||||
| $13.50 | |||||
| $111.00 | |||||
| $111.00 | |||||
| $788.00 | |||||
| $454.00 | |||||
| $2,550.00 | |||||
| $1,970.00 | |||||
| $2,390.00 | |||||
| $3,190.00 | |||||
| $440.00 | |||||
| $596.00 | |||||
| $440.00 | |||||
| $120.00 | |||||
| $532.00 | |||||
| $532.00 | |||||
| $717.00 | |||||
| $532.00 | |||||
| $144.00 | |||||
| $759.00 | |||||
| $759.00 | |||||
| $922.00 | |||||
| $759.00 | |||||
| $165.00 | |||||
| $722.00 | |||||
| $685.00 | |||||
| $706.00 | |||||
| $759.00 | |||||
| $354.00 | |||||
| $354.00 | |||||
| $35.00 | |||||
| $1,790.00 | |||||
| $1,865.00 | |||||
| $2,095.00 | |||||
| $1,780.00 | |||||
| $2,065.00 | |||||
| $2,085.00 | |||||
| $2,170.00 | |||||
| $299.00 | |||||
| $330.00 | |||||
| $2,350.00 | |||||
| $2,625.00 | |||||
| $3,170.00 | |||||
| $41.00 | |||||
| $12.00 | |||||
| $1,255.00 | |||||
| $1,325.00 | |||||
| $1,255.00 | |||||
| $1,560.00 | |||||
| $1,560.00 | |||||
| $1,615.00 | |||||
| $222.00 | |||||
| $275.00 | |||||
| $157.00 | |||||
| $64.50 | |||||
| $426.00 | |||||
| $292.00 | |||||
| $426.00 | |||||
| $426.00 | |||||
| $426.00 | |||||
| $344.00 | |||||
| $260.00 | |||||
| $231.00 | |||||
| $308.00 | |||||
| $266.00 | |||||
| $330.00 | |||||
| $48.25 | |||||
| $49.50 | |||||
| $9.00 |
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.