ERM1-250/21 Single-Person Round Crane Man Basket
Product Description
The ERM1-250/21 is a single-occupant, crane-suspended personnel platform in Lifting Technologies’ Professional series, designed for elevated work in confined or restricted spaces where only a compact round basket will fit. Its approximately 21″ diameter overhead-protected platform provides 360-degree access around towers, tanks, stacks, and other cylindrical structures while keeping overall size and weight low for use with a wide range of crane configurations.
Engineered to comply with OSHA 29 CFR 1926.1431 for hoisting personnel and OSHA 1926.502 for fall protection, the ERM1-250/21 uses a high-strength 0.120″ wall square tubular steel frame, heavy-gauge steel floor grating, 42″ high guardrails, 6″ toeboards, perforated steel side panels from toeboard to mid-rail, an inward-swinging access gate with positive restraining device, and a full-perimeter inner grab rail providing personal fall-arrest anchorage. The 250 lb rated load capacity is intended for a single worker plus tools and PPE, and the approximately 200 lb basket weight delivers a compact, economical Professional-series solution where low total suspended load is important.
Smaller Professional round models such as the ERM1-250/21 use a dedicated steel lifting bar with an integrated master link for quick connection to the crane, helping maintain stable, controlled positioning under the hook while minimizing rigging complexity. Each unit is proof-load tested at 313 lb—125% of its 250 lb rated capacity—before shipment and is supplied with Lifting Technologies’ easy-on/easy-off detachable test weight system, proof-load certificates, inspection checklists, access to a Lifting Technologies online training video, and a use and safety handbook to support compliant lift planning and site safety programs.
The ERM1-250/21 is used where a single technician needs crane-suspended access in very tight work envelopes—such as localized inspection points, instrumentation locations, and confined structural bays—while maintaining OSHA-compliant guardrails, 6″ toeboards, anchorage, and documentation. Overhead protection is standard for this model to help protect the worker from falling objects in high-consequence environments.
Industrial Applications
Construction & Structural
The ERM1-250/21 is suited to inspection and light work on columns, tank shells, stacks, and tight structural bays where only a very compact round basket will fit. Its small diameter and overhead protection make it a good choice for weld checks, bolt-up verification, and touch-up work in congested areas where larger platforms would interfere with surrounding steel.
Power Generation & Utilities
In power plants and utility stations, the ERM1-250/21 works well for turbine bearing inspections, localized boiler or stack access, and other single-point tasks where clearances are tight and outage time is limited. The compact platform helps operators position one technician close to the work while maintaining OSHA-compliant guardrails, 6″ toeboards, and personal fall protection anchorage.
Wind Energy
For wind energy contractors, the ERM1-250/21’s small round footprint and overhead protection support tower exterior or localized nacelle-area work where space for a below-the-hook platform is restricted. A single worker can be positioned near bolt patterns, access hatches, or localized repair points while keeping total suspended load low to match available crane capacities on site.
Features & Benefits
Compact Single-Person Round Work Area: The approximately 21″ diameter round platform provides a focused work area for one worker plus tools and PPE, aligning naturally with cylindrical structures while minimizing the clearance required for positioning and entry.
Professional-Series, OSHA-Compliant Construction:A high-strength 0.120″ wall square tubular steel frame, heavy-gauge floor grating, 42″ guardrails, 6″ toeboards, perforated side panels from toeboard to mid-rail, inward-swinging access gate, and a full-perimeter inner grab rail deliver OSHA 1926.502-compliant fall protection in a cost-effective Professional design.
Integrated Overhead Protection: An overhead frame with perforated steel skylights provides overhead object protection while maintaining visibility and approximately 79″ interior height, supporting work in environments with falling-object hazards.
Lifting-Bar Suspension for Compact Models: Smaller Professional round baskets like the ERM1-250/21 use a robust steel lifting bar with an integrated master link to connect directly to the crane hook, simplifying rigging while helping maintain level orientation under load.
Proof Load Tested With Detachable Test Weight: Each ERM1-250/21 is proof-load tested at 313 lb (125% of its 250 lb rated capacity) and includes Lifting Technologies’ easy-on/easy-off detachable test weight system, along with proof-load certificates, inspection documentation, and access to an online training video for safety and audit readiness.
Durable Powder-Coat Finish and Custom Options: An electrostatic powder-coat finish in standard solid red (with yellow test weights) offers resistance to impact, abrasion, chemicals, and corrosion; additional fall protection anchor points, tag lines, and other custom features can be engineered to meet specific site requirements.
Frequently Asked Questions
What OSHA regulations apply to the ERM1-250/21?
ERM1-250/21 is designed to comply with OSHA 29 CFR 1926.1431 for hoisting personnel with cranes and OSHA 1926.502 Subpart M for fall protection, including requirements for proof-load testing, 42" guardrail and 6" toeboard dimensions, enclosure between toeboard and mid-rail, and personal fall-arrest anchorage.
How much weight can the ERM1-250/21 hold?
ERM1-250/21 has a maximum rated capacity of 250 lb, which includes the worker plus tools, materials, and personal protective equipment. The basket itself weighs approximately 200 lb, excluding rigging, and each unit is proof-load tested at 313 lb (125% of rated capacity) before shipment.
How many people can work in the ERM1-250/21?
The ERM1-250/21 is rated for a single occupant. Lift planning should treat the 250 lb capacity as inclusive of the worker, tools, and PPE so that the total live load remains within the rated capacity.
When is ERM1-250/21 preferred over larger Professional round baskets?
Choose ERM1-250/21 when a single worker needs overhead-protected access in very tight or confined locations and a small-diameter round footprint is required. Larger Professional round models with higher capacities and diameters are better suited when additional workspace or multiple occupants are needed.
Does ERM1-250/21 include overhead protection?
Yes. ERM1-250/21 is supplied as a round Professional basket with overhead protection, using a perforated steel overhead frame to help shield the worker from falling objects while maintaining clear sightlines and approximately 79" interior height.
What documentation comes with the ERM1-250/21?
Each ERM1-250/21 ships with proof-load test certification, operator guidelines, pre-use inspection checklists, access to a Lifting Technologies online training video, and the Lifting Technologies Use and Safety Handbook. Additional documentation for regulatory or site-specific safety requirements is available upon request.
Is the ERM1-250/21 suitable for confined or highly congested work areas?
Yes. The ERM1-250/21 is one of the smallest overhead-protected Professional round baskets, making it a strong fit for highly congested structural bays, tight tank or stack locations, and other applications where a very compact footprint is required for safe positioning.
Can the ERM1-250/21 be used for wind turbine work?
The ERM1-250/21’s compact round platform and low total suspended load make it appropriate for certain wind turbine tasks, such as localized tower exterior work or inspection around tight access points, provided that crane capacity and site procedures support personnel lifting in those locations.
Find Out More
For other Professional round baskets with different diameters and capacities, see the Professional Man Basket (Round) page.
For multi-person or larger-platform solutions, consider rectangular and square Professional crane man baskets in the same series.
For heavier-duty Premier series options, see the Premier Crane Man Basket and Premier Round Man Basket pages.