RM4-1200S/60 4-Person Round Crane Man Basket With Overhead Protection
Product Description
The RM4-1200S/60 is a four-occupant crane-suspended personnel platform with integrated overhead protection, designed for large crews working on towers, tanks, stacks, silos, and other cylindrical or curved structures where overhead hazards and full-circle access are present. Its 60″ round footprint provides a spacious, efficient workspace that allows up to four workers to position themselves around the perimeter with 360-degree access to the work face.
Built to meet or exceed OSHA 1926.1431 requirements for hoisting personnel, the RM4-1200S/60 features a heavy-gauge steel frame and floor grating, a high-strength round tubular steel frame, 42″ guardrails with 6″ toeboards, perforated steel side panels from toeboard to mid-rail, and a fixed overhead frame with perforated skylight panels approximately 79″ above the floor. The 1,200 lb rated capacity accommodates a four-person crew with tools and light materials, and the 710 lb basket weight reflects robust structural and canopy construction suited to demanding industrial work.
As part of the Premier round man basket line, the RM4-1200S/60 ships as a turnkey package with a dedicated base-attached suspension system: a four-leg sling assembly of 1/2″ 6×36 IWRC wire rope secured to a master link and attached to the platform base with swage sockets and safety-threaded clevis pins, plus a safety leg for tie-off to the load line above the overhaul ball. Each basket incorporates Lifting Technologies’ easy-on/easy-off detachable test weight system, is proof-load tested at 1,500 lb—125% of its 1,200 lb rated capacity—before shipment, and ships with proof-load certificates, inspection checklists, access to Lifting Technologies online video training, and operator guidelines to support safety and regulatory compliance.
The RM4-1200S/60 is widely used in power generation, petrochemical, mining, heavy industry, and construction environments where four-person crews must work together at height in overhead‑hazard conditions around large cylindrical equipment. Its large round footprint, overhead protection, and OSHA-compliant design make it especially suitable for major outage work on towers, tanks, stacks, large process vessels, and curved structural elements where multiple workers must coordinate tasks around the circumference in a single lift.
Industrial Applications
Power Generation & Utilities
Power generation facilities frequently require crew-sized platforms for major outage work on stacks, towers, tanks, and curved duct systems where the work follows a circular profile and overhead hazards are present. The RM4-1200S/60’s 60″ round deck, overhead protection, and 1,200 lb capacity support four-person crews performing stack inspections, casing and duct repairs, and tower maintenance where full-circle access and canopy protection improve productivity and safety.
The large round workspace allows workers to position around the perimeter with welding, NDT, and mechanical repair equipment, while the overhead frame helps shield crews from scale or minor debris that may fall from above during intensive outage activities.
Petrochemical & Refining
Refineries and petrochemical plants use crew-sized round baskets for column and vessel work, including externals inspections, nozzle maintenance, and shell repairs on large cylindrical process equipment where overhead piping and structure create dropped-object risks. The RM4-1200S/60 provides a four-person, overhead‑protected round platform for major column externals, tower and reactor work, and large tank appurtenance repairs where multiple technicians must coordinate tasks around the circumference.
Its overhead canopy reduces exposure to minor falling debris from overhead process lines, trays, and structural members, making it well suited to dense process units where a full crew must work together at height around large curved equipment.
Mining, Heavy Industry & Construction
Mining operations, heavy industrial facilities, and large construction projects rely on rugged, crew-sized man baskets for maintenance and construction on large cylindrical vessels, bins, kilns, chimneys, towers, and curved architectural elements. The RM4-1200S/60 supports four-person crews performing maintenance, repair, and construction tasks around large tanks, process shells, and tall cylindrical structures where the round footprint follows the equipment profile and the canopy mitigates overhead hazards.
The heavy-duty construction, large diameter, and high capacity provide space and load rating for multiple technicians, tools, and small components, enabling crews to perform complex work scopes along curved faces and around the perimeter of large structures from a single lift position.
Features & Benefits
Full-Crew Round Footprint With Canopy: The 60″ round platform provides a spacious, efficient workspace for up to four workers plus tools and materials, while integrated overhead protection supports operation under stacks, piping, and structural steel in overhead‑hazard environments.
Optimized for Large Cylindrical Structures: The round footprint eliminates corners and is sized for work on large-diameter columns, stacks, tanks, and towers, allowing the basket to rotate around curved surfaces and maintain close, consistent positioning along the circumference.
OSHA-Compliant Premier Construction: Built to comply with OSHA 1926.1431, the RM4-1200S/60 includes a dedicated base-attached suspension system that minimizes tipping, 42″ guardrails, 6″ toeboards, perforated side panels from toeboard to mid-rail, and a grab rail inside the entire perimeter providing personal fall arrest anchorage in compliance with OSHA 1926.502. Overhead protection panels with perforated skylights are positioned approximately 79″ above the floor.
Proof Load Tested to 1,500 lb: Each RM4-1200S/60 is proof-load tested at 1,500 lb (125% of its 1,200 lb rated capacity) prior to shipment and includes Lifting Technologies’ easy-on/easy-off detachable test weight system, proof-load certificates, and inspection documentation for safety and audit readiness.
High-Capacity, Heavy-Duty Design: With a 710 lb basket weight and a 1,200 lb capacity, the RM4-1200S/60 offers heavy-duty construction and overhead protection while keeping the total suspended load within the capabilities of many industrial cranes and rigging setups.
Frequently Asked Questions
What OSHA regulations apply to the RM4-1200S/60?
OSHA 1926.1431 governs the use of crane-suspended personnel platforms in construction, defining requirements for proof-load testing, guardrail and toeboard dimensions, fall protection anchor points, and inspection procedures. The RM4-1200S/60 is designed and documented to support compliance with these standards, including its overhead protection system.
How much weight can the RM4-1200S/60 hold?
The RM4-1200S/60 has a maximum rated capacity of 1,200 lb, which must include the combined weight of all four occupants plus tools, materials, and personal protective equipment. With a basket weight of 710 lb, the total suspended load is approximately 1,910 lb, excluding rigging; each unit is proof-load tested at 1,500 lb (125% of capacity) prior to shipment.
How many people can work in the RM4-1200S/60?
The RM4-1200S/60 is rated for four occupants. Lift planning should allocate the 1,200 lb capacity across four workers and their equipment using conservative per-person weight allocations so that total crew, tools, and PPE remain within the rated load.
When should the RM4-1200S/60 be used instead of smaller round models?
The RM4-1200S/60 is the best choice when a full four-person crew must work together in overhead‑hazard environments around large cylindrical structures and a large round workspace is required. Smaller RM2‑ and RM3‑series round baskets fit two- and three-person work, while RM1‑series models serve single-technician tasks in tighter areas.
Can the RM4-1200S/60 be customized?
Yes. Lifting Technologies can customize the RM4-1200S/60 with options such as modified access gates with positive restraining device, additional tool or material trays, specialized rigging configurations, additional fall protection anchor points, and custom paint colors or markings for site or corporate identification. Custom-designed platforms of other sizes and shapes are also available.
What documentation comes with the RM4-1200S/60?
Each RM4-1200S/60 ships with proof-load test certification, operator guidelines, pre-use inspection checklists, access to Lifting Technologies online video training, and detailed product specifications, along with access to a use and safety handbook and training materials explaining applicable OSHA rules. Additional documentation can be provided to support regulatory compliance and site safety programs.
Find Out More
For similar round overhead baskets for smaller crews, see RM2-600S/38 and RM3-900S/48.
For round baskets without overhead protection, see RM4-1200G/60 and other G‑series round models.
For an overview of Premier round crane man baskets and OSHA guidance, visit the Premier Man Basket (Round) page and the Crane Man Basket OSHA Regulations page.