The B&B SUMNER Stubby Heavy Duty Pro-Jack Series delivers low-profile, high-capacity pipe support with multiple interchangeable head options to match any pipe fabrication or installation task. Built around a rugged fixed-leg steel base, these compact tripod jack stands are engineered for tight or low-clearance environments where stability, safety, and versatility are critical. From standard V-heads and reinforced gusset V-heads to roller, phenolic, stainless, conveyor, ball transfer, and chain vice heads, the Stubby Pro-Jack lineup gives welders and pipefitters the flexibility to build the exact support system they need for shop or field work.
Available Configurations
- 4240 – Stubby Heavy Duty Pro-Jack with V-Head: General-purpose low-height pipe support for fit-up, cutting, and welding.
- 4240GVH – Stubby Heavy Duty Pro-Jack with Gusset V-Head: Reinforced V-head for added rigidity and stability under heavier loads.
- 4240SWH – Stubby Heavy Duty Pro-Jack with Steel Wheel Head: Steel rollers for smooth pipe rotation during cutting, beveling, and welding.
- 4240PWH – Stubby Heavy Duty Pro-Jack with Phenolic Wheel Head: Phenolic rollers to help protect coated, lined, or stainless pipe surfaces.
- 4240SSWH – Stubby Heavy Duty Pro-Jack with Stainless Steel Wheel Head: Corrosion‑resistant stainless rollers for harsh or washdown environments.
- 4240SSH – Stubby Heavy Duty Pro-Jack with Stainless Steel V-Head Sleeves: Stainless V-head sleeves for clean, corrosion‑resistant pipe contact.
- 4240BTH – Stubby Heavy Duty Pro-Jack with Stainless Steel Ball Transfer Head: Ball transfer head for multidirectional pipe movement and fine alignment.
- 4240PCV – Stubby Heavy Duty Pro-Jack with Pipe Chain Vice Head: Integrated chain vice for secure clamping during cutting, threading, and prep work.
- 4240CRH – Stubby Heavy Duty Pro-Jack with Conveyor Roller Head: Conveyor roller head for feeding pipe along fabrication lines and cells.
- 4240CVH – Stubby Heavy Duty Pro-Jack with Conveyor V-Head: Conveyor V-head that cradles and guides pipe while allowing axial movement.
- 4240BASE – Stubby Heavy Duty Pro-Jack (Base Only): Heavy-duty stubby base ready to accept the head style that best fits your application.
Key Features
- Stubby low-profile design offers a working height from approximately 16"–26" (406.4–660.4 mm) for use under low pipe racks and in tight spaces.
- Heavy-duty fixed-leg steel construction delivers long-term durability in demanding industrial, mechanical, and fabrication environments.
- Wide tripod stance and low center of gravity help improve stability and reduce tipping risk during welding, cutting, and material handling.
- Supports pipe diameters up to 12" (300 mm), covering most common process, mechanical, and utility piping sizes.
- Multiple head options (V-head, gusset V-head, roller, phenolic, stainless, conveyor, ball transfer, chain vice, and more) let you match the stand to your exact task.
- Third-party tested with a minimum 2:1 safety ratio for dependable, safety-focused performance on the jobsite or in the shop.
- Ideal for pipe fabrication, spool assembly, plant maintenance, power generation, petrochemical, HVAC, and general mechanical contracting.
- Compact footprint makes it easy to place the stands around other equipment, welding stations, and modular skids.
- Interchangeable configurations allow you to standardize on one stubby base while using specialized heads across your crew or shop.
- Designed to complement B&B SUMNER Hi Heavy Duty Pro-Jack models, giving you a complete pipe support solution across multiple height ranges.
Load Capacity & Performance
- Maximum Load Capacity: Up to 2,500 lbs (1,135 kg) depending on selected head configuration.
- Typical Load Ratings by Head: V-head and gusset V-head up to 2,500 lbs (1,135 kg); steel and stainless wheel heads up to 2,000 lbs (910 kg); phenolic and ball transfer heads up to 1,000 lbs (450 kg); conveyor and pipe chain vice heads up to 550 lbs (250 kg).
- Height Range: 16"–26" (406.4–660.4 mm) approximate working height for all complete jack stand configurations.
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Pipe Capacity: Up to 12" (300 mm) outside diameter, depending on head style and application.
Ideal Applications
- Pipe fabrication shops, welding bays, and modular spool assembly lines.
- Field installation and maintenance in plants, refineries, power stations, and mechanical rooms.
- Low-clearance and under-rack piping where standard-height jack stands are too tall.
- Projects requiring corrosion resistance, surface protection, or multidirectional pipe movement.
- Contractors using combined or variant listings in ecommerce platforms who need one parent product with multiple high‑value configurations.
