ISC Iron Wizard Screwgate Carabiner — 70kN MBS
When the load demands steel and the clearance demands a smart gate design, the ISC Iron Wizard delivers both. This small-profile steel screwgate carabiner packs an extraordinary 70kN (15,680 lbs) minimum breaking strength into a compact body, making it one of the strongest carabiners in its class. The gate swings to the side rather than inward, maximizing clearance for ropes, slings, and rigging hardware — a critical feature when working in tight or complex rigging configurations.
Key Features
- Exceptional MBS: 70kN (15,680 lbs) — among the highest in its class
- Side-swing gate for maximum clearance in complex rigging setups
- Steel construction for high-load and high-wear applications
- Screwgate locking sleeve for secure, manual locking
- Compact small-profile body
- Ideal for arborist rigging, redirect, and high-load connection points
Specifications
| Spec | Value |
|---|---|
| Material | Steel |
| Gate Type | Screwgate (side-swing) |
| MBS | 70kN (15,680 lbs) |
| Profile | Small |
| Vendor | ISC |
| Country of Origin | USA |
Frequently Asked Questions
What makes the Iron Wizard different from a standard screwgate carabiner?
The Iron Wizard's gate swings to the side rather than inward, which provides significantly more clearance for ropes and rigging hardware. This is especially useful in complex rigging setups where a standard inward-swinging gate would be obstructed or difficult to operate.
Why is 70kN MBS significant?
70kN (approximately 15,680 lbs) is an exceptionally high breaking strength for a carabiner of this size. It provides a massive safety margin for arborist rigging applications, where dynamic loads and shock loading can multiply the forces on connection hardware.
When should I choose steel over aluminum for a carabiner?
Steel carabiners are preferred for high-load rigging applications, redirect points, and situations where the carabiner will experience significant friction or wear from ropes running through it. Aluminum is lighter and better suited for climbing and work positioning where weight matters more than raw strength.
What is a screwgate and how does it work?
A screwgate carabiner has a threaded locking sleeve that the user manually rotates to lock the gate closed. It requires deliberate action to open, making it very secure — but slower to operate than autolock designs. It's the preferred choice for fixed connection points that won't be frequently clipped and unclipped.
What arborist applications is the Iron Wizard suited for?
The Iron Wizard is well-suited for rigging block attachment points, redirect carabiners, bull rope connections, and any high-load fixed connection where maximum strength and gate clearance are priorities.