Automated Heatloop Bender for Refrigerator Defrost Tubes
A custom transfer-and-bend machine engineered by J+H Automation Solutions to form the steel tube used in a refrigerator's defrosting operation — designed, built, installed, programmed, and started up in just six weeks.
Project Overview
Every frost-free refrigerator relies on a defrost system, and at its heart is a formed steel tube — the heatloop — that must be bent to precise geometry before assembly. Handling and forming those tubes manually is slow, inconsistent, and out of step with the pace of a modern appliance line.
J+H Automation Solutions engineered this automated heatloop bender to take over the complete operation. The machine transfers each steel tube through the workcell and bends it into its finished defrost-loop form, delivering consistent geometry on every cycle without operator intervention.
The Result
The manufacturer gained a repeatable, high-throughput tube forming process that feeds the assembly line with dimensionally consistent heatloops — eliminating a manual bottleneck and the part-to-part variation that comes with it.
Just as significant was the schedule: because J+H handles engineering, fabrication, controls programming, and installation under one roof, the entire machine went from design to production startup in six weeks.
Key Components & Engineering
The heatloop bender combines four proven motion technologies into a single coordinated workcell:
Linear Rails
Precision linear rail systems guide the tube transfer motion, keeping each part on an exact, repeatable path as it moves between stations.
Air Cylinders
Pneumatic cylinders provide the actuation and clamping forces for the bending operation — fast, reliable, and straightforward to maintain in a production environment.
Line Shaft Drive
A line shaft drive synchronizes conveyance through the machine, moving tubes smoothly and efficiently between the transfer and forming stages.
Proprietary Wedge Lift Technology
Vertical positioning is handled by a wedge lift technology developed by the J+H Automation Solutions conveyor division — a compact, robust lifting mechanism proven across our conveyor product line.
Applications for Tube Transfer & Bending Automation
The transfer-and-bend architecture behind this machine adapts to a range of tube and wire forming challenges, including:
Appliance & HVAC Manufacturing
Forming defrost tubes, condenser lines, and refrigerant loops with production-rate consistency ahead of assembly.
General Metal Fabrication
Automating the handling and bending of steel tube and formed-wire components anywhere manual forming limits throughput or repeatability.
Built in the USA, Deployed Nationwide
J+H Automation Solutions designs, fabricates, and integrates custom automation from facilities in Hackett, Arkansas and Hockley, Texas, serving manufacturers across the United States.
From single workcells like this heatloop bender to complete turnkey conveyor systems, every machine is engineered around the customer's part, process, and production targets. Explore our automation services or view more completed projects.
Frequently Asked Questions
What does the heatloop bender machine do?
The heatloop bender transfers and bends the steel tube used in a refrigerator's defrosting operation. The machine moves each tube through the workcell and forms it into the precise heatloop geometry the defrost system requires, replacing manual handling and forming with consistent, repeatable automation.
What technology powers the heatloop bender?
The machine combines linear rails for guided transfer motion, air cylinders for actuation and clamping, a line shaft drive for synchronized conveyance, and a proprietary wedge lift technology developed by the J+H Automation Solutions conveyor division for smooth vertical positioning between stations.
How long did the heatloop bender project take from design to startup?
The complete machine was designed, built, installed, programmed, and started up in a 6-week timeframe — an accelerated schedule made possible by J+H Automation Solutions' in-house engineering, fabrication, controls programming, and installation capabilities.
Can J+H Automation Solutions build custom tube bending automation for my production line?
Yes. J+H Automation Solutions designs and builds custom tube handling, bending, and transfer automation for manufacturers nationwide from facilities in Hackett, Arkansas and Hockley, Texas. Each system is engineered around your tube geometry, cycle time, and line integration requirements. Contact sales@jhautomationsolutions.com or call (479) 638-8398 to discuss your application.
Need a Forming or Transfer Process Automated?
From heatloop benders to complete turnkey conveyor systems, J+H Automation Solutions engineers custom automation built around your product, your process, and your timeline.
Request a Consultation Call (479) 638-8398