Precision Rebuilt, Purpose-Built Extras
This Pines #1 Hydraulic Tube Bender came to us for a complete rebuild, and the customer wanted more than a stock refresh — they needed a Tiger Stop assembly added for long-material positioning and an under-nose split die actuator built in to support their part mix. We combined our standard full-rebuild process with those two custom additions.
The rebuild included a new COMPTROL digital controller, all-new swing arm and stationary arm components, new hydraulic cylinders and Vickers valving, a full electrical refresh, and two customer-requested additions: an 18′ Tiger Stop rail assembly (~16′ of travel) and an under-nose split die actuator (toggle style). The machine was cleaned, sanded, and painted in the shop’s standard colors — Miller Welder Blue & Safety Yellow — unless otherwise specified.
Custom Additions: Tiger Stop & Split Die Actuator
This rebuild went beyond the standard scope to add two customer-requested features:
Tiger Stop assembly — 18′ rail with approximately 16′ of travel, for precise long-material positioning
Under-nose split die actuator assembly (toggle style)
New Comptrol Digital Controller
Bender is upgraded with a COMPTROL digital controller. The controller is by Sierra Controllers. The controller uses a quick-disconnect to the main electrical box — wired with an orange, non-metallic anaconda conduit rather than gray metallic, so a forklift or foot traffic won’t crush it and damage the internal wiring.
- Intuitive menu-driven part & setup screens
Each bend parameter programmable per bend
Alphanumeric part names, massive part storage & bends-per-part
Integrated manual & automatic controls
Programmable mandrel oscillation, early mandrel extraction
(3) return modes — manual, semi-automatic & automatic
Pressure Die Assist (boost) delay
Bend arm deceleration (if hydraulically equipped)
Automatic parts counter, status line for run mode
Display of bend arm angle & current part bend data
Easy enabling/disabling of bender devices and toggling of inputs
Two mandrel extractor sequences
Automatic mandrel lube intervals (if equipped)
(4) line x (20) character vacuum fluorescent display
Controller board covered by 2-year warranty
“The greatest improvement on this machine is the linear rail and pressure die holder with the outboard support because I can move it in and out with one hand.”
Richie, Kottler Metal Products, Ohio
Swing Arm and Stationary Arm Refurbished
Swing Arm:
- Removed & inspected
- Repair bend die keyway and pin holes
- Re-cut spindle keyway
- Skim cut bend die mounting surface & weld up low areas
- Remove & replace Timken cup & cone bearings
- Replace spanner nuts with Taperline locking style
- Replace spindle key and fasteners
Stationary Arm:
- Removed & inspected
- Repair pin holes
- Replace fasteners
Both arm slides replaced with new. Wear strips, clamp bars, gibs, rod ends, bushings in toggle links, pins, snap rings & grease zirks all replaced with new.
Hydraulic Updates
New hydraulic cylinders — bend, clamp & pressure
New Vickers valves for clamp die, pressure die, bend, and deceleration (PA5 cord connections)
Vickers piston pump (not vane pump)
New suction strainer, new oil sight glass
Flow controls added behind clamp, pressure & bend to adjust forward/reverse speeds
Hydraulic tank cleaned, new hydraulic hoses
New gaskets on side oil tank covers
New Lube USA electronic slide lubricator — junctions, meters, line, ferrules & fittings
New main electric motor (TEFC)
Electrical Updates
- Existing disconnect box & fused disconnect switch reused
New motor starter, transformer, wireway, wiring, switches, fittings, fuses
Additional Updates
- New rear sprocket pin & bushing
New front & rear bend chain and connecting links
New Pressure Die Holder Assembly, including master bar assembly (linear rail & bearing style)
New clamp die holder assembly
Machine cycled & tested — sample material and a set of tooling required from customer for run-off
