Malta Dynamics C7900 rebar chain assembly work-positioning device
Malta Dynamics

Malta Dynamics C7900 Rebar Chain Assembly

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$99.00
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Malta Dynamics
SKU:
C7900
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Malta Dynamics Positioning

C7900 Rebar Chain Assembly

The Malta Dynamics C7900 Rebar Chain Assembly is a 24 inch work-positioning device that holds a worker hands-free at a vertical structure such as concrete rebar or steel. The worker clips the two self-locking snap hooks to the side D-rings of a positioning harness, hooks the swivel rebar hook onto the structure, and leans back into the chain to work with both hands.

The assembly uses a 9/32 inch Grade 80 welded-link chain, a stainless steel swivel for tangle-free movement, and forged steel snap hooks, with a rebar hook flange width adjustable from 2.36 to 14.1 inches. It is rated for fall restraint and work positioning, not fall arrest, and must be used together with a separate personal fall arrest system. It meets ANSI Z359.3-2019 and OSHA requirements.

Malta Dynamics C7900 rebar chain assembly features callout: swivel rebar hook, 24 inch Grade 80 welded chain, self-locking snap hooks, ANSI Z359.3 work positioning
24 inWelded-Link Chain
130-310 lbsWorker Capacity
9/32 inGrade 80 Chain
1-YearLimited Warranty
2.36-14.1 inRebar Hook Flange
Z359.3ANSI Positioning
2.5 inRebar Hook Gate
StainlessSwivel

Who Needs This Product

The C7900 is a work-positioning and restraint device for crews who need to work hands-free while leaning against a vertical structure: rebar tie crews, concrete formwork, and steel erectors. It is not a fall arrest device. OSHA and ANSI require a positioning device system to be backed by a separate, independent personal fall arrest system, so the worker wears a full body harness with side D-rings for positioning and a dorsal connection to an SRL or lanyard for fall arrest at the same time.

Features

Hands-free positioning

The worker leans back into the 24 inch chain at a fixed working position, freeing both hands for tying rebar or forming concrete.

Swivel rebar hook

A stainless steel swivel lets the rebar hook rotate for tangle-free connection to vertical rebar or steel.

Adjustable flange grip

The rebar hook fits flange widths from 2.36 to 14.1 inches, spanning small rebar to larger structural members.

Grade 80 welded chain

A 9/32 inch Grade 80 welded-link chain carries the positioning load with high strength in a compact assembly.

Self-locking snap hooks

Forged steel self-locking snap hooks attach to the harness side D-rings and resist accidental rollout.

Restraint and positioning rated

Certified for fall restraint and work positioning under ANSI Z359.3-2019, used alongside a separate fall arrest system.

Technical Specifications

SKU C7900
Type Chain work-positioning and restraint assembly (not for fall arrest)
Chain length 24 in
Worker capacity 130 to 310 lb per user, including tools and equipment
Chain material 9/32 in Grade 80 welded link
Swivel material Stainless steel
Snap hook material Forged steel, self-locking
Rebar hook gate opening 2.5 in
Rebar hook flange width Adjustable 2.36 in to 14.1 in
Restraint anchorage At least 2 times the maximum potential impact load
Use limits Work positioning and restraint only; requires a separate personal fall arrest system
Compliance OSHA 1910.66 appendix C; OSHA 1926.500; ANSI Z359.3-2019; ANSI A10.32
Product weight 5.4 lb each
UPC 852492006431
Warranty 1 year limited (Malta Dynamics) against factory defects in workmanship and materials
⚠

This is not a fall arrest device. The C7900 is a work-positioning and restraint assembly and must always be used together with a separate, independent personal fall arrest system that connects to the harness dorsal D-ring. Connect the snap hooks to the harness side D-rings only, never to the dorsal D-ring, keep the positioning system taut to prevent a free fall, and remove the assembly from service after any fall event.

Compliance Standards

ANSI Z359.3-2019

American National Standard for positioning and travel restraint systems.

ANSI A10.32

ANSI/ASSP standard for fall protection systems in construction and demolition.

OSHA 29 CFR 1926.500

Construction fall protection scope and definitions, including positioning device systems.

OSHA 29 CFR 1910.66 Appendix C

General industry guidance for positioning and personal fall arrest systems.

Typical Applications

Rebar tie crewsHands-free positioning while tying vertical rebar cages and walls.
Concrete formworkLean-back positioning during form setting and stripping.
Steel erectionPositioning at columns and structural members during connection work.
Vertical wall workSteady working position against tall vertical structures.
Bridge and infrastructurePositioning on rebar mats and structural steel.
Precast and tilt-upHands-free work at vertical precast elements.
Utility structuresPositioning on lattice and structural members.
Restraint zonesKeeping a worker tethered back from an unprotected edge.

Use and Positioning Overview

Use the C7900 per the Malta Dynamics Rebar Chain Assembly user instruction manual, always with a separate personal fall arrest system. The sequence below is an overview only.

  1. Inspect. Check the chain, swivel, rebar hook, snap hooks, and gates before each use.
  2. Don the harness. Wear a full body positioning harness with side D-rings and connect a separate personal fall arrest system to the dorsal D-ring.
  3. Connect to the harness. Clip the two self-locking snap hooks to the harness side D-rings and confirm both gates are closed and locked.
  4. Hook the structure. Set the swivel rebar hook on the vertical rebar or member and confirm the flange is within the adjustable range.
  5. Position. Lean back into the chain to reach a stable hands-free working position with the positioning system taut.
  6. Verify arrest. Confirm the independent fall arrest system and its fall clearance are in place before working.

Inspection and Retirement

Inspect before each use, with a documented competent-person inspection at least every six months. Remove the assembly from service for any of the conditions below.

  • Chain: stretched, deformed, cracked, or corroded welded links.
  • Snap hooks: gates that do not self-lock, bent keepers, or deformed throats.
  • Rebar hook: cracks, deformation, or a gate that does not fully close.
  • Swivel: binding, roughness, or failure to rotate freely.
  • Markings: capacity and standard markings must remain legible.

Retirement triggers: any fall event, any stretched or deformed chain link, any snap hook or rebar hook that fails to lock or close, or exposure to chemicals or heat beyond the manual limits. An assembly exposed to a fall must be retired even if it appears undamaged.

Fall Protection Distributors logo Fall Protection
Distributors, LLC Free Tool · No Signup · OSHA 1926.502 Free Interactive Tool Fall Protection Calculator Pick your system. Run the math. Generate a plan. 1Pick Your SystemDetermine fall restraint vs. fall arrest based on your work surface, edge access, and clearance. 2Run the MathCalculate exact fall clearance required below the work surface for your SRL or lanyard setup. 3Generate a PlanGet a printable OSHA-compliant Fall Protection Plan structured around 29 CFR 1926.502(k). Run the Numbers and Stay Safe Launch the Calculator ›

Frequently Asked Questions

What is the Malta Dynamics C7900 Rebar Chain Assembly used for?
The C7900 is a 24 inch work-positioning and restraint device. A worker clips its two snap hooks to the side D-rings of a positioning harness, hooks the swivel rebar hook to a vertical structure, and leans back into the chain to work hands-free, for example tying rebar or forming concrete.
Is the C7900 a fall arrest device?
No. The C7900 is for work positioning and restraint only and is not designed for fall arrest. It must always be used together with a separate, independent personal fall arrest system connected to the harness dorsal D-ring.
How does the rebar chain attach to a harness?
The two forged steel self-locking snap hooks attach to the harness side D-rings only, never to the dorsal D-ring. The swivel rebar hook then connects to the vertical rebar or structural member.
What flange widths does the rebar hook fit?
The rebar hook flange width is adjustable from 2.36 inches to 14.1 inches, with a 2.5 inch gate opening, so it spans small rebar up to larger structural members.
What is the chain made of?
The C7900 uses a 9/32 inch Grade 80 welded-link chain, a stainless steel swivel for tangle-free movement, and forged steel snap hooks. Each assembly weighs 5.4 lb.
Which standards does the C7900 meet?
The C7900 meets ANSI Z359.3-2019 for positioning and travel restraint and ANSI A10.32, and complies with OSHA 1910.66 appendix C and 1926.500. It is backed by a Malta Dynamics Declaration of Conformity with third-party testing under ISO 17025 accreditation.
What else do I need to work safely with the C7900?
The C7900 is the positioning device only. You also need a full body positioning harness with side D-rings and a complete, separate personal fall arrest system, an SRL or shock-absorbing lanyard plus an anchorage, connected to the dorsal D-ring. Use the Fall Protection Calculator below to plan the arrest system clearance.

Malta Dynamics C7900 Submittals and Documentation

C7900 Spec Sheet (PDF)Chain, swivel, hooks, flange range, capacity, and compliance summary. C7900 User Instruction Manual (PDF)Positioning use, harness connection, anchorage requirements, inspection, and warnings. C7900 Declaration of Conformity (PDF)Conformity statement with ISO 17025 third-party test verification.

Compatible and Related Products

Specifying a Positioning System for Your Crew?

Need help pairing a positioning assembly with the required separate fall arrest system? Confirm your structure, harness D-ring configuration, and fall clearance with us and we will walk through the full kit list so the right equipment ships together.

Call 863-703-4522 to talk to a fall protection specialist.

Equipment offered by Malta Dynamics is warranted against factory defects in workmanship and materials for a period of one (1) year from date of installation or first use by the original owner. Upon written notice, Malta Dynamics will repair or replace defective items at its sole discretion. This warranty does not cover damage from wear, abuse, transit, or failure to maintain the product, and applies only to the original purchaser.
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About Malta Dynamics

Established by Damian Lang, Malta Dynamics provides cutting-edge fall protection solutions for diverse industries. Initially a laborer mixing and carrying mortar to bricklayers on masonry job sites, Damian started his own masonry company in Ohio in 1984. As it grew, he needed better solutions to protect his workers. Safety training and equipping his team with the best equipment became a top priority in the company's early years. Eventually, Malta Dynamics was born from this focus on safety. With over three decades of hands-on experience in construction, aviation, manufacturing, warehousing, masonry, and more, Malta Dynamics designs, engineers, and manufactures an extensive line of fall protection and safety equipment tailored to meet the unique demands of each field. Malta Dynamics products meet OSHA requirements and incorporate innovative features attributed to industry feedback. With a steadfast commitment to safety and a wealth of hands-on expertise, Malta Dynamics delivers fall protection solutions engineered to safeguard workers in even the most demanding environments.

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