Industrial Parts
Buy and sell industrial parts in Guatemala.
When a coffee wet mill around Cobán strips its pulpers down between harvests, the shopping list runs to copper drum sleeves, pillow-block bearings for the drum shaft, and belts and chain for the rotary dryer. That is the trade in miniature: bearings and oil seals that cost little and stop a line when they go, alongside the motors and frequency drives that cost real money. New parts and pre-owned ones both have a place, and so does surplus from a plant that changed machines and kept its spares in the storeroom. Take the old part, or at least its number, when you go to look.
From a pillow-block bearing to a frequency drive:
industrial parts split into a mechanical side, which wears, and an electrical side, which burns out. The mechanical side is bearings and the cast pillow blocks that bolt them to a frame, plus oil seals, V-belts, roller chain and sprockets. Most of the decision there is getting the right number from a maker you trust: SKF, FAG, NSK, NTN or Timken for bearings, Optibelt or Gates for belts. Electric motors and gearmotors sit in between, heavy and costly enough to be worth buying used, and WEG and Siemens are the names seen most on plates here. The pins, bushings and track rollers of excavators and other yellow machines are bought the same way, by number. Control gear, from contactors to frequency drives and PLC cards, is the delicate end: worth a lot when it matches the panel it goes into and very little when it does not.
The number stamped on the old part:
tells you more than any description. A bearing’s number gives its bore, outside diameter and width, and the suffix says whether it is sealed, shielded or open. A motor carries its frame, shaft, speed and voltage on the plate. Machines here arrive from the United States, Europe and Asia, so a NEMA-frame motor sized in inches and an IEC one sized in millimetres can share a horsepower rating and still not bolt to the same base or take the same pulley. If the number has worn off, measure the part and take it with you.
A rewound motor is priced on the shop that wound it:
set against a new three-phase motor of about five horsepower from WEG or Siemens, which runs roughly Q4,000 to Q6,000, it is worth noticeably less even when it runs sweetly on the bench, because the copper and varnish sit where nobody can see them and only the workshop’s tag says who did the job. A used motor still on its original winding, quiet and dry, earns the best money a used one can. Turn the shaft by hand first. It should spin freely and silently, with no rough spots and no play when you lift it. A burnt smell or darkened varnish on the end windings means it ran hot, and any electrician can check the insulation with a megger. A gearmotor weeping oil at the output seal is close to a rebuild.
Counterfeit bearings and parts that aged on a shelf:
both look new in a photo, and both can stop a machine within weeks. Fakes carrying famous names show blurred print on the box, laser marking that looks scratched by hand and a price no authorised dealer for the brand could match; photograph the box and markings and ask that dealer to check them before you pay for a batch. Shelf age catches honest surplus too. Grease in a bearing stored for years stiffens, rubber seals and hydraulic hoses harden and crack, and a frequency drive left unpowered for a long time may need its capacitors brought up slowly before it sees full voltage. A sealed, dated box from a plant’s storeroom is a good buy. A loose part with rust on the races is not.
A box of spares from a coffee wet mill that changed machines:
sells best part by part, with the number in the title. Photograph every plate and box end, and say whether each item is new in its packaging, removed in working order or untested, and which machine it came off. A wet mill in Acatenango that replaced its pulpers may still hold drum sleeves, pillow blocks and dryer sprockets that fit the older machines on neighbouring coffee farms, and the buyer is usually the mechanic from one of them. Expect that mechanic to arrive with the worn part in hand to lay beside yours, so keep every item labelled and the motors where a shaft can be turned, with one of the generators on hand if there is no supply to run one.