Z-Lock™ Top Plate Quad (includes one positioning stud, one orienting stud, and two clamping studs)
- Made of machinable aluminum to accommodate vises, collet fixtures, Mitee-Bite* clamps, etc. – the possibilities are limitless.
- All top plates are precision ground and include the appropriate studs pre-mounted and ready to go.
- 1″ thick to accommodate milled locating pockets up to 1/4″ deep.
$1,695.00
In Stock for Same Day Shipping
Quick-Change Workholding For All Machining Centers
- Precision Receiver Mounts to Your Machining Center Table or Five-Axis Rotary Table
- Mount Workpieces to Top Plates Offline, Keeping Your Spindles in the Cut for Maximum Production
- Greatly Reduces Setup Times - Top Plates Interchange in Seconds with Precision Repeatability
- The Royal Z-Lock™ Keeps Your Machining Centers Making Parts – and Profits!
Simple Manual Actuation
A few turns of a hex key and it’s locked – no risk of the top plate loosening from vibration, spring wear, or air/hydraulic failure. The Royal Z-Lock™ is also a breeze to implement – no external air or hydraulic lines to install so you’ll be running parts more efficiently in no time!
Precision Repeatability
X -axis – 0.0001"
Y -axis – 0.0001"
Z -axis – 0.00005"
Extremely Powerful Clamping Force
Easily achieves up to 11,240lbs. (50kN) of clamping force – far greater than other zero-point systems (even those with a “turbo” feature). The hardened locking screw contains a large, sturdy engagement surface for failsafe operation.
Massive Locating Surface
Up to 50% greater surface area than other brands for superior stability and vibration dampening.
No “Machinist’s Touch” Required When Changing Top Plates
All stud models have been optimized to eliminate binding, making top plate changeovers a breeze.
*Mitee-Bite is a registered trademark of Mitee-Bite Corporation.
How it Works:
The heavy-duty clamping screw of the Royal Z-Lock™ rigidly and precisely engages the matching tapered groove in the stud, providing secure, consistent clamping force. Simple – yet powerful and reliable!
Royal Z-Lock™
No problem – Royal can manufacture whatever you need to your exact requirements. Contact us today!
Not Sure What to Order? Here’s a Popular Setup:
- 1 pc. Royal Z-Lock™ Dual Part Number 65002
(Includes two receivers mounted to baseplate) - 2 pcs. Z-Lock™ Top Plate Dual Part Number 65022 (One plate gets loaded offline while the other is working inside your machining center)
Note: Studs included with all top plates – no need to order separately.

