SM4-1200G 4-Person Square Crane Man Basket
Premier Series | Four-Person | Square | No Overhead Protection
Product Description
The SM4-1200G is a four-occupant crane-suspended personnel platform built for large-scale maintenance, outage, and construction work where full crew access at height is required. Its 58″ x 58″ square footprint provides a spacious, stable work area for four workers plus tools and materials while remaining compact enough to position around plant equipment and structural steel.
Designed to meet or exceed OSHA 1926.1431 requirements for hoisting personnel, the SM4-1200G incorporates a high-strength welded steel frame, 42″ guardrails with 6″ toeboards, an inward-swining access gate, perforated steel sides from toeboard to mid-rail, and multiple fall protection anchor points around the perimeter. The 1,200 lb rated capacity supports four workers with shared tools and materials, and the approximately 740 lb basket weight reflects the heavy-duty construction while keeping total suspended load predictable for lift planning.
Like all Lifting Technologies Premier crane man baskets, the SM4-1200G is manufactured in Missoula, Montana, and ships as a turnkey package with a dedicated four-leg sling assembly, patented detachable test weight system, and full documentation. Each unit is proof-load tested to 125% of its rated capacity—1,500 lb—before leaving the facility, and ships with proof-load certificates, inspection checklists, access to Lifting Technologies online video training, and operator guidelines to support safety programs and regulatory compliance.
The SM4-1200G is widely used in power generation, construction, and mining or heavy industrial facilities where four-person crews handle installation, repair, and inspection tasks at height. Its large square footprint offers a stable, central workspace that lets crews face multiple directions around the platform, making it ideal for tasks that require coordination among several workers in a single lift.
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. The SM4-1200G’s 4-person, 1,200 lb configuration and 58″ x 58″ square deck support boiler panel replacement, large duct or casing repairs, and extensive structural reinforcement work where multiple tradespeople must operate together from the same platform.
The square footprint provides a broad, balanced workspace for four technicians and their welding, inspection, or mechanical tools, helping plants maximize crew productivity per lift during critical outage windows.
Construction & Structural
On large construction and structural projects—such as bridges, stadiums, industrial plants, and high-rise buildings—crew-sized man baskets are frequently used for steel erection, retrofit work, and finishing tasks. The SM4-1200G gives four-person crews a stable, square platform for steel erection crews, bridge deck work, and multi-trade punch-list tasks where several workers must operate together at height around a shared work zone.
The 58″ x 58″ deck provides enough space for workers, fasteners, tools, and small components while remaining maneuverable around building frames and bridge superstructures.
Mining & Heavy Industry
Mining operations and heavy industrial facilities depend on rugged, crew-sized personnel platforms for dragline maintenance, shovel repairs, crusher servicing, and mill work in demanding environments. The SM4-1200G supports four-person crews performing dragline boom work, shovel dipper and bucket repairs, and mill maintenance where a large, stable work surface is required for workers, tools, and heavier components.
Its heavy-duty square deck and high capacity make it well suited for maintenance tasks on large machines and structures in mining and heavy industry, where teams must manage multiple tools and parts within a single lift.
Features & Benefits
Full-Crew Square Work Platform: The 58″ x 58″ deck is sized for four workers, tools, and materials, providing a spacious, shared workspace for crew-based outage, construction, and heavy industrial tasks at height.
Stable, Heavy-Duty Footprint for Large Crews: The large square footprint offers excellent stability and a balanced feel, enabling crews to work in multiple directions around the perimeter without long overhangs or narrow ends.
OSHA-Compliant Premier Construction: Built to comply with OSHA 1926.1431, the SM4-1200G includes 42″ guardrails, 6″ toeboards, an inward-swingin gate, perforated sides from toeboard to mid-rail, multiple fall protection anchor points, and a dedicated base-attached suspension system that minimizes tipping.
Proof Load Tested to 1,500 lb: Each SM4-1200G is proof-load tested at 1,500 lb (125% of its 1,200 lb rated capacity) before shipment and ships with proof-load test certificates, inspection records, and serial-number traceability for safety documentation and audits.
Robust Weight-to-Capacity Ratio for Demanding Work: With an approximate basket weight of 740 lb and a 1,200 lb rated capacity, the SM4-1200G delivers a robust structure for demanding industrial environments while keeping the total suspended load compatible with many project cranes and rigging plans.
Frequently Asked Questions
What OSHA regulations apply to the SM4-1200G?
OSHA 1926.1431 governs the use of crane-suspended personnel platforms in construction, specifying requirements for proof-load testing, guardrail and toeboard dimensions, fall protection anchor points, and inspection procedures. The SM4-1200G is engineered and documented to help users comply with these standards.
How much weight can the SM4-1200G hold?
The SM4-1200G has a maximum rated capacity of 1,200 lb, which includes the combined weight of all four occupants plus tools, materials, and personal protective equipment. With a basket weight of about 740 lb, the total suspended load is approximately 1,940 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 SM4-1200G?
The SM4-1200G is rated for four occupants. Lift planning should distribute the 1,200 lb capacity across four workers and their equipment, using conservative per-person weight allocations to ensure the combined weight of crew, tools, and PPE remains within the rated load.
When should the SM4-1200G be used instead of smaller square models?
The SM4-1200G is the best choice when tasks require a full four-person crew and additional space for tools and materials, such as major outage work, large structural projects, or heavy industrial maintenance. Smaller models like the SM2-600G and SM3-900G are better suited when fewer workers are needed or access constraints favor more compact platforms.
Can the SM4-1200G be customized?
Yes. Lifting Technologies can customize the SM4-1200G with options such as additional tool or material trays, alternate gate or rail configurations, special rigging arrangements, additional fall protection anchor points, and custom paint colors or markings for site or corporate identification. Custom solutions can be developed to align with specific project and safety requirements.
What documentation comes with the SM4-1200G?
Each SM4-1200G 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 regulatory compliance, site safety programs, and workforce training.
Find Out More
For smaller square crew platforms, see the SM3-900G and SM2-600G models. For compact single-person square access, see the SM1-300G. For an overview of Premier crane man baskets and OSHA guidance, visit the Premier Crane Man Basket page and the Crane Man Basket OSHA Regulations page.