HD66 HEAVY DUTY, SURFACE OVERHEAD STOP
Usually Ships: 1-3 Business Days
The Cal-Royal HD66 Heavy Duty Surface Overhead Stop is a premium-grade door control solution engineered for high-traffic, heavy-abuse environments. Designed with a robust slide track mechanism and a heavy shock absorber spring that compresses 5–7° before reaching the dead stop, this overhead stop ensures smooth and secure door operation. Ideal for both interior and exterior single-acting doors, the HD66 is non-handed and UL Listed for up to 3 hours (stop function only), meeting ANSI A156.8 standards. Its durable satin stainless steel finish (US32D) and complete installation kit—including thru-bolts, wood, and machine screws—make it a reliable and easy-to-install choice for commercial and institutional applications. Optimize your facility’s safety and performance with the trusted strength of Cal-Royal’s HD66 overhead stop.
- Interior or exterior doors
- Doors are single acting
- Non-handed
- Recommended for high traffic, heavy abuse installations
Features
- Heavy duty surface
- Slide track design
- Heavy shock absorber spring provides 5-7° compression before deadstop
- Stop or hold-open function
- Complete screw packet with thru-bolts for door, wood and machine screws for frame
- Durable slider cam
- 110° maximum opening
- 1 3⁄4" minimum door thickness
- 1 3⁄16" square channel
Compliance
- ANSI A156.8 UL Listed as STOP Function
Usually Ships: 1-3 Business Days
The Cal-Royal HD66 Heavy Duty Surface Overhead Stop is a premium-grade door control solution engineered for high-traffic, heavy-abuse environments. Designed with a robust slide track mechanism and a heavy shock absorber spring that compresses 5–7° before reaching the dead stop, this overhead stop ensures smooth and secure door operation. Ideal for both interior and exterior single-acting doors, the HD66 is non-handed and UL Listed for up to 3 hours (stop function only), meeting ANSI A156.8 standards. Its durable satin stainless steel finish (US32D) and complete installation kit—including thru-bolts, wood, and machine screws—make it a reliable and easy-to-install choice for commercial and institutional applications. Optimize your facility’s safety and performance with the trusted strength of Cal-Royal’s HD66 overhead stop.
- Interior or exterior doors
- Doors are single acting
- Non-handed
- Recommended for high traffic, heavy abuse installations
Features
- Heavy duty surface
- Slide track design
- Heavy shock absorber spring provides 5-7° compression before deadstop
- Stop or hold-open function
- Complete screw packet with thru-bolts for door, wood and machine screws for frame
- Durable slider cam
- 110° maximum opening
- 1 3⁄4" minimum door thickness
- 1 3⁄16" square channel
Compliance
- ANSI A156.8 UL Listed as STOP Function
Shipping & Delivery
We are committed to getting your order to you as quickly as possible. Below is an overview of our standard shipping timelines.
In-Stock Items
Orders for in-stock items are processed and shipped within 24–48 hours of order placement. You will receive a shipping confirmation with tracking information once your order has been dispatched.
Out-of-Stock / Special Order Items
Items that are not currently in stock are typically available and ready to ship within approximately 2 weeks. Our team will notify you of any changes to this timeline and provide updates throughout the fulfillment process.
Questions?
If you have any questions about your order or shipping status, please don't hesitate to contact us. We're happy to help.