Super Anchor 4015Z Anti-Panic Rope Grab – Automatic Dorsal Panic 2-Pack
The Super Anchor 4015Z Fall Arrester with Automatic Dorsal Panic (ADP) is a reliable, industry-standard mechanical rope grab for 5/8" lifelines. This innovative device features a hinged gate for rapid attachment and seamless integration into your vertical fall protection system. The ADP mechanism includes a critical anti-panic function that locks the device even if a worker instinctively grabs the unit during a free fall, preventing accidental disengagement. Fabricated from rugged zinc-plated steel with a 16kN tensile strength, the 4015Z provides 2026-compliant safety for demanding job sites. For a complete system, pair this grab with a Super Anchor 5/8" Vertical Lifeline.
Need a custom setup? Let our experts provide a free engineered layout for your project. Submit an HLL Quote Request Form Here.

Full ANSI and OSHA Compliance for Vertical Fall Arrest
The 4015Z Fall Arrester is fully compliant with ANSI Z359.12 and OSHA 1926.502 standards, ensuring top-tier safety for trailing applications. The hinged gate design allows for "mid-point" attachment, meaning the user does not have to thread the grab from the end of the lifeline. Designed with a single-direction locking cam, the device ensures that it can only be installed in the correct orientation, with a clear laser-etched arrow pointing toward the anchor point. This robust construction accepts both carabiner and snap hook connectors, providing maximum flexibility for your existing harness and lanyard setups.
Technical Specifications and Performance Limits
Constructed from zinc-plated steel, the 4015Z is rated for a minimum breaking strength of 3,600 lbs and a maximum deceleration distance of only 24 inches. While OSHA supports user weights up to 420 lbs, the device is optimized for the ANSI range of 130–310 lbs to ensure minimal impact forces on the body. For standard rope lifelines, Super Anchor recommends attaching the 4015Z to a shock-absorbing lanyard to further limit deceleration forces during a fall event.

Rope Grab Performance Specifications:
- Device Type: ADP Fall Arrester (Anti-Panic)
- Lifeline Compatibility: 5/8" (16mm) Synthetic Rope
- Material: Zinc-Plated Steel (16kN Tensile Strength)
- Breaking Strength: 3,600 lbs Minimum
- Max Deceleration: 24 Inches
- Compliance: OSHA 1926:502, ANSI Z359.1-07, CSA Z259.2.1
Super Anchor 4015Z Technical Resources:
- Super Anchor 4015Z Instruction Manual – Detailed guide on gate operation and anti-panic functionality.
Super Anchor 4015Z Anti-Panic Rope Grab FAQ
1. What is an "Anti-Panic" or ADP function?
Standard rope grabs can stay open if a falling worker grips the device tightly (the "panic grab" reflex). The 4015Z ADP (Automatic Dorsal Panic) is designed to bypass this reflex and lock onto the rope regardless of whether the user is holding the cam open, providing a critical extra layer of safety.
2. Can I use this rope grab with a 1/2" lifeline?
No. The 4015Z is engineered and certified specifically for 5/8" (16mm) lifelines. Using a smaller diameter rope will prevent the cam from biting correctly, which can lead to catastrophic failure during a fall arrest.
3. Is a shock-absorbing lanyard required with this device?
If your vertical lifeline does not have an integrated shock absorber at the anchor point, you must use a shock-absorbing lanyard to connect your harness to the 4015Z. This ensures that the impact forces on your body remain within the safe OSHA limits of 1,800 lbs.
4. How do I know if the rope grab is installed correctly?
Each 4015Z unit has a laser-etched "Up" arrow. This arrow must always point toward the rooftop anchor. Additionally, you should perform a "tug test" after installation to ensure the cam locks when pulled downward.
5. Can I use this for horizontal lifeline applications?
The 4015Z is a vertical fall arrester. For horizontal lifeline systems, different hardware and tensioning requirements apply. We recommend submitting an HLL Quote Request Form above to get an engineered solution for horizontal travel.
6. How often should I inspect my rope grabs?
Rope grabs must be inspected before every work shift. Check for any deformation in the steel, ensure the hinged gate opens and closes smoothly, and verify that the spring-loaded cam has strong tension. Any unit involved in a fall must be removed from service and destroyed immediately.
7. How do I avoid common mistakes with the 4015Z?
- 1. Upside-Down Installation: Installing the grab with the arrow pointing down is the most common cause of failure. Always double-check orientation.
- 2. Contaminated Ropes: Dirt, grease, or ice on the lifeline can reduce the cam's ability to bite. Ensure your 5/8" lifelines are clean and dry.
- 3. Improper Storage: Storing the grab in a damp environment can lead to rust. Zinc-plating is durable, but the unit should be stored in a dry location after use.