Bar Bending Machine JBB42A – Auto + Manual, TMT 6 to 32mm

The JBB42A is a 415 V three-phase electric bar bending machine that bends deformed TMT bars from 6 mm to 32 mm, with both automatic and manual bending operated from the foot paddle. Built by Jamshedji Constro Equip at MIDC Bhosari, Pune, it is the panel-controlled machine in the 32 mm class: the operator can run repeat bends automatically to a preset angle, or take manual control from the same paddle when a one-off bend is needed. Weight is 380 kg on a 850 × 790 × 900 mm footprint.

Key specifications at a glance

• Bar capacity: 6–32 mm deformed / TMT bar
• Control: automatic and manual, both from the foot paddle
• Panel: heavy-duty control panel
• Motor: 3 kW (4 HP), 1440 rpm, three-phase
• Power supply: 415 V, 3-phase
• Weight: 380 kg

Automatic and manual from one paddle

This is what separates the JBB42A. In automatic mode the machine completes the bend to the preset angle and returns on its own, so an operator working through a long cutting list of identical stirrups or cranks holds a steady rhythm without resetting between bars. Switching to manual on the same paddle gives direct control for odd bends, corrections and setting-out work. On a site producing high volumes of repeat shapes, the automatic cycle is where the time is saved; on varied work, the manual mode means you are not fighting a machine built only for repetition.

The heavy-duty control panel is specified to survive site conditions — dust, vibration and knocks are what kill control gear on a bar bending yard, not the bending itself.

JBB42A or GW42?

Mechanically these are the same machine. Both bend 6–32 mm deformed bar, both run the same 3 kW motor and the same gearbox, both are Jamshedji-built, and both share the same outer body — which is why the photographs look alike. The difference is entirely in the panel and the functioning.

The GW42 bar bending machine is our highest-selling model and the common choice on most RCC sites: proven, straightforward, in use across thousands of projects. The JBB42A adds automatic and manual operation from the paddle plus the heavy-duty control panel, which is what you want in a fabrication yard or on a project running long repetitive bar bending schedules. Same bending capability, different way of driving it. For bar above 32 mm, both are replaced by the GW50 (6–40 mm).

Full specifications

Pairing and spares

Pair the JBB42A with a GQ45 bar cutting machine (6–32 mm) for a matched cut-and-bend station. Wear parts including the 25 mm centre pin are stocked at the Bhosari works.

Buying, GST and delivery

• Supplied with a GST invoice (18% GST — CGST + SGST within Maharashtra, IGST interstate)
• Sold outright — Jamshedji Constro Equip does not rent or hire equipment
• Dispatched F.O.R. Pune to sites across India, plus export to Bangladesh, UAE, Kenya, Tanzania, Sri Lanka and Nepal
• Backed by a manufacturer founded in 1983, ISO 9001:2015 and MSME/Udyam registered, with 5,000+ clients
• After-sales support and spares available direct from the Bhosari works

Frequently asked questions