Overview
The HSI 351F brings heavy-duty freestanding jib crane performance to facilities that can't wait for — or don't need — a poured concrete foundation. The Model 351F is a heavy-duty base mounted jib crane engineered and designed for an allowable foundationless mount — a freestanding 360-degree rotating jib crane that mounts to the floor using Handling Systems anchor bolts.
Available in 1/4 ton (500 lbs), 1/2 ton (1,000 lbs), and 1 ton (2,000 lbs) configurations, with spans up to 20 feet, the 351F matches the standard HSI 351 in both capacity and construction. The difference is entirely in how it installs. Standard heavy-duty freestanding jib cranes require a poured concrete foundation — a process that takes time, requires engineering review, and permanently anchors the crane to one location. The 351F eliminates the pour entirely, anchoring directly into existing reinforced concrete so you're operational faster with lower installation cost and the flexibility to relocate.
Need a poured-foundation version or more capacity? See the standard HSI 351 (up to 2,000 lbs, poured foundation), HSI 351MD (3,000–4,000 lbs), or HSI 351HD (6,000–10,000 lbs). For a lighter workstation jib crane with foundationless installation, see the HSI 750F.
Same Heavy-Duty Construction — Different Installation
The 351F delivers the same structural performance as the standard 351, built to withstand continuous heavy lifting throughout the workday. Key construction features include:
- Heavy-duty assembly with reinforcing side plates for structural rigidity under sustained loads
- Full plate style gussets for maximum load distribution at the base
- Heavy-duty top thrust bearing with pressure-fitted housing for smooth, consistent rotation
- Heavy-duty roller cage built to last — steel rollers with low-friction bearings, adjustable tension bolts, keeper bar, and zerk fittings
- Built with safety in mind — anti-tip angles to prevent head removal from accidental impact and spacer rods to prevent head assembly plate flexing. 360-degree rotation is standard. Motorized rotation is available in electric or air-powered configurations to reduce injuries and create efficiency in high-cycle applications. Hand-geared rotation is also available.
None of this changes because the installation is foundationless. The structural performance of the 351F is identical to the standard 351.
Foundationless Installation — What It Means in Practice
"Foundationless" means no poured concrete foundation is required — not that no concrete is needed. The 351F anchors into your existing floor using HSI's anchor bolts, but the floor must meet concrete specifications before installation can proceed.
What you need:
- Reinforced concrete floor meeting HSI's structural specifications
- Adequate concrete depth for your capacity and span
- No gaps, cracks, or expansion joints within the anchor bolt area
- Review by a qualified structural engineer prior to installation
What you don't need:
- A foundation pour
- Extended curing time (standard poured foundations require up to 28 days before full loading)
- Permanent structural modification to the building
This makes the 351F particularly well-suited for leased or rented facilities, operations undergoing layout changes, and any situation where time-to-productivity and installation flexibility matter alongside heavy-duty lifting capability.
Capacities, Spans & Accessories
The 351F is available in the following configurations:
| Capacity | Pounds |
|---|---|
| 1/4 ton
1/2 ton |
500 lbs
1,000 lbs |
| 1 ton | 2,000 lbs |
Spans are available up to 20 feet. Contact Barron Equipment to confirm available height-under-boom configurations for your specific span and capacity requirements.
Available options and accessories include:
- Tight Wire Kit (Festooning/"Tagline") — for clean cable management along the boom
- C Track Flat Cable Festooning — for flat cable power delivery to the hoist
- Rotation Stops — to limit rotational travel to a defined work zone
- Outdoor Application — weather protection package
- Hoist & Trolley Packages — matched to your capacity and lift height requirements
- Template and Anchor Bolts — for precise anchor layout
Where the 351F Fits — Applications
The 351F is the right choice when you need proven heavy-duty jib crane performance up to 1 ton, but need to avoid the time and cost of a poured foundation. Common applications include:
- Leased or rented facilities — Install a full-performance crane system without permanently altering the building structure
- Facility reconfigurations — Relocate the crane when production layouts change, without a demolition and repour cycle
- Time-sensitive installations — Skip the 28-day concrete curing cycle and get operational faster
- Budget-conscious builds — Eliminate foundation pour costs without sacrificing structural performance
- Assembly and welding workstations — Repetitive material handling in production environments where the 750F workstation crane lacks the capacity needed
- Maintenance bays — Regular equipment service and removal tasks where a permanent installation isn't practical
Configure the Right 351F System
Select your capacity and span and contact Barron Equipment for a full quote. For foundationless installations, a structural engineer review of your concrete floor is required — our team can provide the specification sheets to bring to your facilities team.