ROYAL KEY-OPERATED I.D. WORKHOLDING

For Turning, Milling, and Grinding Applications
Power-Block™ I.D. Workholding
  • Royal’s Key-Operated I.D. Workholding System incorporates a precision- ground 1-1/2″ diameter straight shank that enables the unit to be held in any collet or jaw chuck, reducing setup times by eliminating the need to change out the machine’s workholding device.
  • For use with all Royal precision mandrels, stops, and sleeves. These items are sold separately.
  • Side-actuated with an included square-drive key means that this unit can accommodate parts with blind bores.
  • Precision-ground square and concentric within 0.0005″. If higher accuracy is needed the mandrel can be clocked-in once the unit is gripped in a chuck.
  • Universal straight shank mount enables this ID workholding system to be easily moved from machine to machine as jobs require.
  • A great option for low-volume ID gripping.
  • When ordering, be sure to also order the appropriate threaded expanding rod adapters sold separately.
Royal’s manually-operated mandrel actuator has a 1.5″ diameter straight shank, enabling to be quickly and easily moved from machine to machine as jobs require. In this application the unit is gripped in a Royal QG-80 CNC collet chuck.
Expanding Mandrel Application

How to Order:

  1. Choose the appropriate body assembly based upon your application.
  2. 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.
  3. If required, choose the appropriate part locator to provide a ground banking surface for the workpiece.
  4. Choose the appropriate expanding sleeve based upon the mandrel and diameter you need to grip.

Step 1 – Choose Body Assembly

KEY-OPERATED BODY – Universal

  • This unit has a precision-ground shaft that can be held in any jaw chuck or 1.5” dia. collet, eliminating the need to change out the workholding and enabling the system to be moved from machine to machine as jobs require.
  • Order mandrels, expanding rod adapters, locators, and sleeves separately.

Royal Key-Operated I.D. Body Assemblies

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Description
PART
NUMBER
PRICE
Key-Operated I.D. Body Assembly
$4,695.00
Max:
Min: 0
Step: 1
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Expanding Rod Adapter – Fits Model A Mandrels
$371.00
Max:
Min: 0
Step: 1
Add
Expanding Rod Adapter – Fits Model B&C Mandrels
$371.00
Max:
Min: 0
Step: 1
Add
Expanding Rod Adapter – Fits Model D Mandrels
$371.00
Max:
Min: 0
Step: 1
Add
Expanding Rod Adapter – Fits Model E Mandrels
$371.00
Max:
Min: 0
Step: 1
Add

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

Filters Sort results
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Mandrel
Model
Gripping
Range
C
D
E
Max Axial
Force (lbs)
Max Clamping
Force (lbs)
PART NUMBER
PRICE
A
0.479–0.640
1.57
0.57
0.87
1570
2670
$1,620.00
Max:
Min: 0
Step: 1
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B
0.620 –0.901
1.81
0.59
1.06
2245
3820
$1,620.00
Max:
Min: 0
Step: 1
Add
C
0.870 –1.151
2.05
0.61
1.26
2695
4580
$1,620.00
Max:
Min: 0
Step: 1
Add
D
1.120 –1.651
2.32
0.60
1.50
4045
6875
$1,620.00
Max:
Min: 0
Step: 1
Add
E
1.620 –3.276
2.52
0.58
1.69
5170
8785
$1,620.00
Max:
Min: 0
Step: 1
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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

Filters Sort results
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Fits
Mandrel
Model
Width
Outer
Diameter
Part
Number
PRICE
A
0.47
1.57
$328.00
Max:
Min: 0
Step: 1
Add
B
0.47
1.57
$328.00
Max:
Min: 0
Step: 1
Add
C
0.47
2.95
$378.00
Max:
Min: 0
Step: 1
Add
D
0.47
2.95
$378.00
Max:
Min: 0
Step: 1
Add
E
0.47
2.95
$378.00
Max:
Min: 0
Step: 1
Add

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

Filters Sort results
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Nominal Sleeve
Diameter
Gripping
Range
Part
Number
PRICE
31⁄64″
0.479 - 0.499
47120
*
Not sealed due to limited wall thickness.
$457.00
Max:
Min: 0
Step: 1
Add
1⁄2″
0.495 - 0.515
47121
*
Not sealed due to limited wall thickness.
$457.00
Max:
Min: 0
Step: 1
Add
33⁄64″
0.511 - 0.531
$457.00
Max:
Min: 0
Step: 1
Add
17⁄32″
0.526 - 0.546
$457.00
Max:
Min: 0
Step: 1
Add
35⁄64″
0.542 - 0.562
$457.00
Max:
Min: 0
Step: 1
Add
9⁄16″
0.558 - 0.578
$457.00
Max:
Min: 0
Step: 1
Add
37⁄64″
0.573 - 0.593
$457.00
Max:
Min: 0
Step: 1
Add
19⁄32″
0.589 - 0.609
$457.00
Max:
Min: 0
Step: 1
Add
39⁄64″
0.604 - 0.624
$457.00
Max:
Min: 0
Step: 1
Add
5⁄8″
0.620 - 0.640
$457.00
Max:
Min: 0
Step: 1
Add
41⁄64″
0.636 - 0.656
$457.00
Max:
Min: 0
Step: 1
Add

Royal Expanding Sleeves - Model B

Filters Sort results
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Nominal Sleeve
Diameter
Gripping
Range
Part
Number
PRICE
5⁄8″
0.620 - 0.651
47130
*
Not sealed due to limited wall thickness.
$498.00
Max:
Min: 0
Step: 1
Add
21⁄32″
0.651 - 0.682
$498.00
Max:
Min: 0
Step: 1
Add
11⁄16″
0.683 - 0.714
$498.00
Max:
Min: 0
Step: 1
Add
23⁄32″
0.714 - 0.745
$498.00
Max:
Min: 0
Step: 1
Add
3⁄4″
0.745 - 0.776
$498.00
Max:
Min: 0
Step: 1
Add
25⁄32″
0.776 - 0.807
$498.00
Max:
Min: 0
Step: 1
Add
13⁄16″
0.808 - 0.839
$498.00
Max:
Min: 0
Step: 1
Add
27⁄32″
0.830 - 0.870
$498.00
Max:
Min: 0
Step: 1
Add
7⁄8″
0.870 - 0.901
$498.00
Max:
Min: 0
Step: 1
Add

Royal Expanding Sleeves - Model C

Filters Sort results
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Nominal Sleeve
Diameter
Gripping
Range
Part
Number
PRICE
7⁄8″
0.870 - 0.901
$498.00
Max:
Min: 0
Step: 1
Add
29⁄32″
0.901 - 0.932
$498.00
Max:
Min: 0
Step: 1
Add
15⁄16″
0.933 - 0.964
$498.00
Max:
Min: 0
Step: 1
Add
31⁄32″
0.964 - 0.995
$498.00
Max:
Min: 0
Step: 1
Add
1″
0.995 - 1.026
$498.00
Max:
Min: 0
Step: 1
Add
1 1⁄32″
1.026 - 1.057
$498.00
Max:
Min: 0
Step: 1
Add
1 1⁄16″
1.058 - 1.089
$498.00
Max:
Min: 0
Step: 1
Add
1 3⁄32″
1.089 - 1.120
$498.00
Max:
Min: 0
Step: 1
Add
1 1⁄8″
1.120 - 1.151
$498.00
Max:
Min: 0
Step: 1
Add

Royal Expanding Sleeves - Model D

Filters Sort results
Reset Apply
Nominal Sleeve
Diameter
Gripping
Range
Part
Number
PRICE
1 1⁄8″
1.120 - 1.151
$543.00
Max:
Min: 0
Step: 1
Add
1 5⁄32″
1.151 - 1.182
$543.00
Max:
Min: 0
Step: 1
Add
1 3⁄16″
1.183 - 1.214
$543.00
Max:
Min: 0
Step: 1
Add
1 7⁄32″
1.214 - 1.245
$543.00
Max:
Min: 0
Step: 1
Add
1 1⁄4″
1.145 - 1.276
$543.00
Max:
Min: 0
Step: 1
Add
1 9⁄32″
1.276 - 1.317
$543.00
Max:
Min: 0
Step: 1
Add
1 5⁄16″
1.308 - 1.339
$543.00
Max:
Min: 0
Step: 1
Add
1 11⁄32″
1.339 - 1.370
$543.00
Max:
Min: 0
Step: 1
Add
1 3⁄8″
1.370 - 1.401
$543.00
Max:
Min: 0
Step: 1
Add
1 13⁄32″
1.401 - 1.432
$543.00
Max:
Min: 0
Step: 1
Add
1 7⁄16″
1.433 - 1.464
$543.00
Max:
Min: 0
Step: 1
Add
1 15⁄32″
1.464 - 1.495
$543.00
Max:
Min: 0
Step: 1
Add
1 1⁄2″
1.495 - 1.526
$543.00
Max:
Min: 0
Step: 1
Add
1 17⁄32″
1.526 - 1.557
$543.00
Max:
Min: 0
Step: 1
Add
1 9⁄16″
1.558 - 1.589
$543.00
Max:
Min: 0
Step: 1
Add
1 19⁄32″
1.589 - 1.620
$543.00
Max:
Min: 0
Step: 1
Add
1 5⁄8″
1.620 - 1.651
$543.00
Max:
Min: 0
Step: 1
Add

Royal Expanding Sleeves - Model E

Filters Sort results
Reset Apply
Nominal Sleeve
Diameter
Gripping
Range
Part
Number
PRICE
1 5⁄8″
1.620 - 1.651
$662.00
Max:
Min: 0
Step: 1
Add
1 21⁄32″
1.651 - 1.682
$662.00
Max:
Min: 0
Step: 1
Add
1 11⁄16″
1.683 - 1.714
$662.00
Max:
Min: 0
Step: 1
Add
1 23⁄32″
1.714 - 1.745
$662.00
Max:
Min: 0
Step: 1
Add
1 3⁄4″
1.745 - 1.776
$662.00
Max:
Min: 0
Step: 1
Add
1 25⁄32″
1.776 - 1.807
$662.00
Max:
Min: 0
Step: 1
Add
1 13⁄16″
1.808 - 1.839
$662.00
Max:
Min: 0
Step: 1
Add
1 27⁄32″
1.839 - 1.870
$662.00
Max:
Min: 0
Step: 1
Add
1 7⁄8″
1.870 - 1.901
$662.00
Max:
Min: 0
Step: 1
Add
1 29⁄32″
1.901 - 1.932
$662.00
Max:
Min: 0
Step: 1
Add
1 15⁄16″
1.933 - 1.964
$662.00
Max:
Min: 0
Step: 1
Add
1 31⁄32″
1.964 - 1.995
$662.00
Max:
Min: 0
Step: 1
Add
2″
1.995 - 2.026
$662.00
Max:
Min: 0
Step: 1
Add
2 1⁄32″
2.026 - 2.057
$662.00
Max:
Min: 0
Step: 1
Add
2 1⁄16″
2.058 - 2.089
$662.00
Max:
Min: 0
Step: 1
Add
2 3⁄32″
2.089 - 2.120
$662.00
Max:
Min: 0
Step: 1
Add
2 1⁄8″
2.120 - 2.151
$662.00
Max:
Min: 0
Step: 1
Add
2 5⁄32″
2.151 - 2.182
$662.00
Max:
Min: 0
Step: 1
Add
2 3⁄16″
2.183 - 2.214
$662.00
Max:
Min: 0
Step: 1
Add
2 7⁄32″
2.214 - 2.245
$662.00
Max:
Min: 0
Step: 1
Add
2 1⁄4″
2.245 - 2.276
$662.00
Max:
Min: 0
Step: 1
Add
2 9⁄32″
2.276 - 2.307
$662.00
Max:
Min: 0
Step: 1
Add
2 5⁄16″
2.308 - 2.339
$662.00
Max:
Min: 0
Step: 1
Add
2 11⁄32″
2.339 - 2.370
$662.00
Max:
Min: 0
Step: 1
Add
2 3⁄8″
2.370 - 2.401
$662.00
Max:
Min: 0
Step: 1
Add
2 13⁄32″
2.401 - 2.432
$662.00
Max:
Min: 0
Step: 1
Add
2 7⁄16″
2.433 - 2.464
$662.00
Max:
Min: 0
Step: 1
Add
2 15⁄32″
2.464 - 2.495
$662.00
Max:
Min: 0
Step: 1
Add
2 1⁄2″
2.495 - 2.526
$662.00
Max:
Min: 0
Step: 1
Add
2 17⁄32″
2.526 - 2.557
$748.00
Max:
Min: 0
Step: 1
Add
2 9⁄16″
2.558 - 2.589
$748.00
Max:
Min: 0
Step: 1
Add
2 19⁄32″
2.589 - 2.620
$748.00
Max:
Min: 0
Step: 1
Add
2 5⁄8″
2.620 - 2.651
$748.00
Max:
Min: 0
Step: 1
Add
2 21⁄32″
2.651 - 2.682
$748.00
Max:
Min: 0
Step: 1
Add
2 11⁄16″
2.683 - 2.714
$748.00
Max:
Min: 0
Step: 1
Add
2 23⁄32″
2.714 - 2.745
$748.00
Max:
Min: 0
Step: 1
Add
2 3⁄4″
2.745 - 2.776
$748.00
Max:
Min: 0
Step: 1
Add
2 25⁄32″
2.776 - 2.807
$748.00
Max:
Min: 0
Step: 1
Add
2 13⁄16″
2.808 - 2.839
$748.00
Max:
Min: 0
Step: 1
Add
2 27⁄32″
2.839 - 2.870
$748.00
Max:
Min: 0
Step: 1
Add
2 7⁄8″
2.870 - 2.901
$748.00
Max:
Min: 0
Step: 1
Add
2 29⁄32″
2.901 - 2.932
$748.00
Max:
Min: 0
Step: 1
Add
2 15⁄16″
2.933 - 2.964
$748.00
Max:
Min: 0
Step: 1
Add
2 31⁄32″
2.964 - 2.995
$748.00
Max:
Min: 0
Step: 1
Add
3″
2.995 - 3.026
$748.00
Max:
Min: 0
Step: 1
Add
3 1⁄32″
3.026 - 3.057
$748.00
Max:
Min: 0
Step: 1
Add
3 1⁄16″
3.058 - 3.089
$748.00
Max:
Min: 0
Step: 1
Add
3 3⁄32″
3.089 - 3.120
$748.00
Max:
Min: 0
Step: 1
Add
3 1⁄8″
3.120 - 3.151
$748.00
Max:
Min: 0
Step: 1
Add
3 5⁄32″
3.151 - 3.182
$748.00
Max:
Min: 0
Step: 1
Add
3 7⁄32″
3.214 - 3.245
$748.00
Max:
Min: 0
Step: 1
Add
3 3⁄16″
3.183 - 3.214
$748.00
Max:
Min: 0
Step: 1
Add
3 1⁄4″
3.245 - 3.276
$748.00
Max:
Min: 0
Step: 1
Add

*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.