Used Process Machinery for Sale

Buying used machinery with confidence

Quality used machinery can save a significant share of a project budget and get a line running sooner, but only if the equipment suits your process and arrives in a condition you understand. This guide gives practical advice for buyers of second-hand process equipment: when used makes sense, what to inspect on the most common machines, compliance and hygiene questions, and the costs that sit beyond the purchase price.

When used machinery makes sense

Second-hand equipment is a strong option in many situations, and less suitable in a few. Thinking about this early saves time when you start looking at listings.

• Good fit: robust, simple machines with few wear parts, such as ribbon blenders, paddle mixers, V-blenders, hoppers, dust collectors and many mills.
• Good fit: trial production, new product launches or extra capacity where the long-term volume is still uncertain.
• Good fit: replacing a failed machine quickly to keep production running.
• Think carefully: highly specialised equipment that must match a validated process exactly, or machines with obsolete controls that cannot be supported.
• Think carefully: equipment that has handled hazardous, toxic or strongly allergenic materials unless its cleaning history is documented.

7 practical tips for buying used machinery

1. Start with your process, not the listing. Define the batch size, throughput, materials and hygiene standard first, then look for used machinery that fits. A bargain that is the wrong size is not a bargain.
2. Ask about the product history. Find out what the machine processed, for how long and how it was cleaned. Previous food, chemical or pharmaceutical use affects where it can safely go next.
3. Inspect it running where possible. Hearing a gearbox, feeling for vibration and watching a discharge valve open tells you far more than photographs.
4. Check the wear parts. Seals, bearings, screens, hammers, ribbons and liners determine the short-term spending needed after purchase.
5. Review the electrical and safety equipment. Older machines may need new guarding, interlocks, emergency stops or motor and control upgrades to meet current requirements.
6. Confirm spare parts availability. Make sure seals, bearings and key components can still be sourced, or that a capable workshop can make them.
7. Plan installation before you pay. Check dimensions, weight, access through doors, power supply and how the machine will connect to existing equipment.

For a printable inspection checklist, see our guide to buying used process equipment.

Questions to ask before buying used machinery

Whether you are buying from an equipment specialist, an auction or another manufacturer, a short list of questions quickly separates well-kept equipment from machines that will need major work.

• Why is the machine being sold, and when did it last run in production?
• Are manuals, drawings, electrical schematics or parts lists available?
• What maintenance or repairs have been carried out, and are there records?
• Has the machine been cleaned and, if so, how and to what standard?
• Is it sold as is, or has it been checked, serviced or refurbished?
• Can it be seen running, or at least turned over under power?

Documentation adds real value to used machinery. Manuals and drawings make spare parts easier to identify, while a clear maintenance history gives confidence that the machine has been looked after. If none is available, budget for a more thorough inspection and allow some contingency for parts.

Levels of refurbishment

Second-hand equipment is sold in very different conditions, and comparing prices only makes sense when you compare like with like. Broadly, used machinery falls into three groups: as is, where the buyer accepts the machine in its current state; checked and serviced, where it has been inspected, cleaned and run, with obvious faults fixed; and refurbished, where seals, bearings and wear parts have been renewed and guarding or controls updated. A refurbished machine costs more up front but is usually ready for installation with far less risk.

Ask exactly what work has been done and what has not. A lower price for an untested machine can quickly disappear once seals, bearings and electrical upgrades are added.

What to inspect on common used machinery

Mixers and blenders

Check the ribbons, paddles or agitator for cracks, bends and repairs, and measure the clearance to the trough or shell. Look at shaft seals for leaks, run the drive to listen for gearbox noise, and confirm the discharge valve seals properly. Our ribbon blender buying guide covers mixers in more detail, and our powder mixers page explains the different designs.

Mills and size reduction equipment

Inspect the rotor, hammers, pins or beaters for wear, the liners and screens for damage, and the bearings for noise or play. Ask for the rotor balance history if available. Make sure the mill suits your target particle size; our milling page explains the main mill types.

Feeders, fillers and conveyors

Check screws and helixes for wear, the condition of hoppers and agitators, load cells and controllers on gravimetric equipment, and the age of any electronics. Controls on older feeders and fillers may need replacing to integrate with a modern PLC.

Dust collectors

Look at the condition of the filter housing, cleaning system and fan, and plan on fitting new filter elements. Confirm the airflow suits your extraction points and check whether explosion protection is fitted or required for your powders.

Compliance and hygiene considerations

Used machinery must be safe to operate in your workplace, regardless of how it was used before. Before commissioning, check guarding, isolation points, emergency stops and electrical condition. Where powders are combustible, the equipment and its installation should be reviewed against your site’s dust hazard assessment and AS/NZS 4745 for handling combustible dusts.

For food, dairy and pharmaceutical use, ask about materials of construction, internal surface finish and any previous allergen or chemical contact. A thorough clean and inspection, and sometimes repolishing or new seals, may be needed before used machinery can go into a hygienic area.

Costs beyond the purchase price

The purchase price is only part of the cost of second-hand equipment. Building a realistic budget avoids surprises once the machine arrives.

• Transport, crane hire and rigging to get the machine into position.
• Refurbishment: seals, bearings, wear parts, paint or polishing.
• Electrical work, new controls and safety upgrades.
• Platforms, hoppers, ducting and connections to existing equipment.
• Installation, commissioning and operator training.

Even with these costs, used machinery is often far cheaper and faster than new, especially for robust equipment such as mixers and dust collectors.

Timing is another factor. Used machinery in stock can often be inspected, refurbished and installed in the time it would take to manufacture a new machine, which matters when a failed mixer or mill is holding up production or a new contract has to start quickly. Building a little extra time into the plan for cleaning and safety upgrades still keeps most projects well ahead of a new-build schedule.

Getting used machinery installed and running

A second-hand machine delivers value only when it is working in your line. KPM can refurbish equipment in our Kings Park workshop, design platforms and connections around it, and handle installation and commissioning on site. Because we also supply new feeders, conveyors and bag handling equipment, we can combine used machinery with new items into a complete powder blending system.

Used machinery FAQs

Can I inspect used machinery before buying?

Yes. We recommend inspecting equipment in person wherever possible. Call to arrange a time to see machines at our Kings Park workshop.

Do you refurbish used machinery?

We can replace seals, bearings and wear parts, upgrade guarding and controls, and prepare equipment for your application before installation.

Is used machinery suitable for food production?

Often, yes, provided the materials of construction, surface finish and product history are suitable and the machine is thoroughly cleaned and inspected first.

Can you find a machine that is not listed?

Tell us what you need. Equipment often comes in before it is advertised, and new equipment is available when a suitable used machine is not.

New equipment to pair with used machinery

Powder mixersBulk bag systemsAuger fillers