BM4-1200S 4-Person Rectangular Crane Man Basket With Overhead Protection
Premier Series | Four-Person | Rectangular | With Overhead Protection
Product Description
The BM4-1200S is a four-occupant crane-suspended personnel platform with integrated overhead protection, engineered for large-scale industrial maintenance and construction work where full crew access at height is required under overhead piping, decks, or structural members. Its 36″ x 108″ rectangular footprint delivers extensive reach along beams, pipe racks, and bridge girders while maintaining a narrow width that can move between columns, bracing, and process equipment.
Designed to meet or exceed OSHA 1926.1431 requirements for hoisting personnel, the BM4-1200S features all-welded steel construction, 42″ guardrails with 6″ toeboards, an inward-swinging access gate, and multiple fall protection anchor points, plus a fixed overhead frame with perforated protection above the entire crew area. The 1,200 lb rated capacity supports up to four workers with tools and materials, and the approximately 1,130 lb basket weight reflects the heavy-duty structure and canopy while keeping the total suspended load predictable for crane selection and lift planning.
Like all Lifting Technologies Premier crane man baskets, the BM4-1200S is manufactured in Missoula, Montana, and ships as a turnkey system that includes a four-leg sling assembly, detachable test weight system, and complete documentation. Each unit is proof-load tested at 1,500 lb—125% of its 1,200 lb rated capacity—before leaving the facility, providing serial-numbered test certificates, inspection records, and operator guidelines for site safety files.
The BM4-1200S is widely used in power generation, construction, and mining or heavy industrial environments where four-person crews must coordinate complex tasks at height in overhead-hazard areas. Its long rectangular work surface and overhead protection allow teams to stage tools, welding equipment, and components so they can work multiple joints or locations from a single lift while reducing exposure to minor falling debris.
Industrial Applications
Power Generation & Utilities
In power generation facilities, major outages often require full crews working on boilers, ducts, precipitators, and structural steel around turbines where overhead steel, cable trays, and equipment create dropped-object risks. The BM4-1200S’s 4-person, 1,200 lb configuration with overhead protection supports boiler panel replacement, large duct section repairs, and structural reinforcement work along long runs of steel while helping shield workers from small falling debris and scale.
The 36″ x 108″ rectangular platform provides ample space for four technicians, welding machines, NDT gear, and consumables while the overhead frame adds a protective barrier in dense overhead environments common in turbine buildings and boiler houses.
Construction & Structural
Large construction projects—bridges, stadiums, industrial plants, and high-rise structures—use crew-size platforms for steel erection, retrofit work, and structural finishing where several workers must operate together under beams and decks. The BM4-1200S gives four-person crews a protected rectangular platform for steel erection crews, bridge deck work, and multi-trade punch-list tasks performed beneath overhead girders, deck panels, or canopies.
Its 36″ x 108″ footprint allows teams to address multiple connections, bracing points, or details per lift while the overhead protection helps manage minor falling debris during active construction and retrofit operations.
Mining & Heavy Industry
Mining operations and heavy industrial facilities depend on rugged personnel platforms for dragline maintenance, shovel repairs, crusher servicing, and mill work in demanding conditions where overhead structures and equipment present additional hazards. The BM4-1200S supports four-person crews performing dragline boom work, shovel dipper repairs, and mill maintenance under overhead supports, chutes, or service structures with added overhead protection.
The long rectangular deck and canopy allow crews to stage tools, replacement wear parts, and equipment while working along large machines or structures, reducing crane repositioning and improving efficiency on heavy maintenance tasks.
Features & Benefits
Full-Crew Rectangular Work Platform With Canopy: The 36″ x 108″ deck accommodates up to four workers, tools, and materials, while the integrated overhead protection provides coverage for crew-based work under piping, ducts, decks, and structural steel.
Maximum Rectangular Reach for Large Crews: The long rectangular footprint delivers extensive reach along beams, pipe racks, and bridge girders, enabling crews to tackle multiple connection points or work locations from a single lift and reducing crane moves on linear work scopes.
OSHA-Compliant Premier Construction: Built to comply with OSHA 1926.1431 for crane-suspended personnel platforms, the BM4-1200S includes 42″ guardrails, 6″ toeboards, an inward-swinging gate, multiple personal fall arrest anchor points, and a dedicated base-attached suspension system that improves platform stability.
Proof Load Tested to 1,500 lb: Each BM4-1200S is proof-load tested at 1,500 lb (125% of its 1,200 lb rated capacity) prior to shipment and ships with proof-load test certificates, inspection documentation, and serial-number traceability to support regulatory compliance and audit requirements.
Heavy-Duty Weight-to-Capacity Balance With Overhead Protection: With an approximate basket weight of 1,130 lb and a 1,200 lb rated capacity, the BM4-1200S offers a robust structure and canopy for demanding industrial environments while keeping total suspended load predictable for crane sizing and lift planning.
Frequently Asked Questions
What OSHA regulations apply to the BM4-1200S?
OSHA 1926.1431 governs the use of personnel platforms suspended from cranes in construction, including requirements for proof-load testing, guardrail and toeboard dimensions, fall protection anchors, and inspection procedures. The BM4-1200S is designed, tested, and documented to help users comply with its requirements, including the overhead protection system.
How much weight can the BM4-1200S hold?
The BM4-1200S 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 roughly 1,130 lb, the total suspended load is approximately 2,330 lb, excluding rigging; each unit is proof-load tested at 1,500 lb (125% of capacity) before shipment.
How many people can work in the BM4-1200S?
The BM4-1200S is rated for four occupants. Lift planning should divide the 1,200 lb capacity across four workers and their equipment, using conservative per-person weight allocations so that the combined weight of crew, tools, and PPE remains within the rated load.
When should the BM4-1200S be used instead of the BM4-1200G?
Choose the BM4-1200S when four-person crews are working under overhead piping, decks, or structural steel and need added overhead protection against minor falling debris or incidental contact. The BM4-1200G is better suited where overhead clearance is limited or overhead hazards are minimal and a non-overhead configuration offers more flexibility.
Can the BM4-1200S be customized?
Yes. Lifting Technologies can customize the BM4-1200S with options such as additional tool or material storage, modified overhead frame details, custom rigging configurations, extra fall protection anchorage points, and custom paint colors or markings for site or corporate identification. Custom designs can be developed to meet project-specific safety and access requirements.
What documentation comes with the BM4-1200S?
Each BM4-1200S ships with proof-load test certification, operator guidelines, pre-use inspection checklists, access to Lifting Technologies online video training, and detailed product specifications. Additional documentation and training resources are available to support site safety programs, regulatory compliance, and workforce onboarding.
Find Out More
For the same 4-person rectangular configuration without overhead protection, see the BM4-1200G. For smaller rectangular overhead-protection models, see the BM3-900S and BM2-600S. For an overview of Premier crane man baskets and OSHA guidance, visit the Premier Crane Man Basket page and Crane Man Basket OSHA Regulations page.