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The complete course on Alchatek's portable, low-pressure foam injection machine — cabinet systems, the auto calibrator, daily and weekly maintenance, startup, gun technique, troubleshooting triage, and knowing exactly where the Badger's limits are. Combines the Equipment Masterclass and the Maintenance & Troubleshooting walkthrough into one course, taught by Colt, Alchatek Technical Training.
After this module, you'll be able to set up, start, run, and shut down a PolyBadger; perform the daily and weekly maintenance that keeps it out of the shop; triage the "it won't pump" call in the right order; and set honest customer expectations about what this machine can and can't do.
The PolyBadger is Alchatek's portable, low-pressure plural-component proportioner for slab lifting and void filling. Its entire reason for existing is the word portable: it rolls on cart wheels, runs quiet, and goes places a rig can't. Wheel it through a middle school hallway, run an extension cord, and you're a self-contained injection operation. One contractor ran Amazon Fulfillment center work more than 400 feet from the truck — a job physically impossible with a trailer rig.
The common field setup is an enclosed trailer with a winch to load the machine in and out, a compressor, and a generator. Power matters: the generator carries two 220V circuits — A and B heaters share one circuit, and hose heat takes the second (hose heat draws as much as the other two heaters combined). Set the air regulator to 120 PSI per the User Manual.
On the machine itself: a 50-foot fully heated hose, two stubby 2:1 stick pumps feeding the cabinet, and the injection gun. No high-pressure hose anywhere — this is the low-pressure side of the equipment family.
The PolyBadger is the right machine when portability wins. It is the wrong machine for production work, and the fastest way to a miserable customer is letting them find that out on a job. Lead with the good, then set the limits clearly:
Material path, start to finish: stick pumps → braided-steel feed lines → Y-strainers → heaters → auto calibrator → heated hose → gun. The stubby stick pumps are 2:1 air-driven transfer pumps (roughly 100 PSI max working) — and here's the key systems insight: whatever fluid pressure the stick pumps make is all the pressure the whole system has. There is no second-stage pump.
That tempts people into a classic mistake: cranking air pressure to chase production. On the old cabinets, pushing past ~150 PSI snapped the calibrator piston almost instantly — Colt broke one himself at World of Concrete trying to make it pump faster. The new cabinets have internals nearly double the size and tolerate more abuse, but the rule stands: run it at spec, not at "more."
Heat: A-side and B-side heaters with internal heating rods, plus the heated hose, each on its own controller — targets around 100–110°F, adjusted with the panel arrows.
The auto calibrator is the component that makes a low-pressure machine produce properly mixed foam: it enforces a perfect 1:1 ratio of A-side (ISO) and B-side (resin). If either material stops flowing — clogged strainer, closed valve, dead heater — the calibrator stops the whole machine rather than spray off-ratio foam. Every "it won't pump" complaint starts here conceptually: something is starving one side.
Failure modes to know: ISO crystallization seizing it up, units coming out of time, and the small roll pin that can break or disconnect — the unit strokes but pumps nothing because the ISO side isn't being pulled. Watch for a machine that cycles but produces no material.
On the old cabinets, the auto calibrator survived only if the operator manually flushed lube through it daily — and in the real world, nobody does. Stagnant ISO crystallizes inside the calibrator, and the machine dies. That neglect pattern generated more service calls than any other cause.
The Auto Lube system takes the human out of the loop: a lube canister hangs under the cabinet plate, and a timed pump cycles lube through the A-side automatically — 60 seconds every 10 minutes, continuously replacing the lube so ISO never sits still long enough to crystallize. All new PolyBadgers ship with it.
Most contractors run a Badger once or twice a week, not daily — which makes the weekly ritual even more important. An intermittent machine is exactly the one ISO loves to set up in.
First startup on a new machine (per the User Manual): the system ships full of hydraulic fluid from factory testing. Drain the stick pumps (push up the check valve at the bottom), set the regulator to 120 PSI, run the return lines into trash pails, and cycle until you see the color change from hydraulic fluid to material — first through the returns, then through the hoses. Expect the first foam out of a fresh rig to be off-color until residue clears — budget an extra set of material for a fresh rig's first job so the flush doesn't eat your margin.
Daily startup:
The PolyBadger now runs the MiniMaster Low-Pressure Gun (item PB2010) — a metal-bodied, cleanable, reusable injection gun built specifically for this machine, with a safety lock that prevents accidental discharge and compatibility with the same standard static mixers you already stock.
Prep discipline, every time:
Gun cleaning (per the User Manual): remove the front plug, drill out the fluid and air orifices, soak the plug in solvent, wire-brush residual foam off the front, and lubricate the entire front end before reassembly. The MiniMaster's metal body is built for exactly this clean-and-reuse cycle.
When the call comes in — "my PolyBadger won't pump" — work the list in order. The machine only stops for a reason, and the reason is almost always cheap:
End-of-day shutdown (per the User Manual):
Old-style cabinets: flush the cabinet at end of every running day — flush pot, about 4 seconds per side.
Deep service note: the stubby transfer pumps disassemble with a strap wrench — lower seals are an annual replacement item, and ISO buildup inside the center tube can be scraped with PVC pipe or dissolved with Soak 130. The check ball at the bottom of the lower housing is the foot valve; keep it clean.
Score at least 4 of 5 to unlock module completion.