Used recycling machines are an economically attractive alternative to new equipment—provided they are in good technical condition. A thorough inspection is crucial to ensure that the machine will operate reliably and not result in unexpected costs down the line. But what should companies really look for? This checklist shows you how to professionally evaluate used recycling machines and avoid mistakes when purchasing them.
First impressions reveal a lot about a machine's history. Check the following:
– Overall cleanliness and condition
– Corrosion, cracks, or deformed components
– Oil stains and signs of leaks
– Condition of the paintwork and trim
A well-maintained exterior is a sign of regular upkeep and responsible care.
Mechanical wear parts are particularly important in shredders, balers, cable stripping machines, and cutting tools. Be sure to:
– Blades, counter-blades, and cutting edges
– Bearings, shafts, and drive belts
– Rotor bodies and screens
– Play or imbalance in the drive
Severe wear and tear can significantly reduce performance and result in high maintenance costs.
Many recycling machines operate at high hydraulic pressure. Malfunctions can quickly lead to breakdowns. Therefore, check the following:
– Condition of hydraulic hoses
– Tightness of valves and cylinders
– Hydraulic oil (color, odor, contaminants)
– Function of pressure regulation
Any defects should be professionally assessed before purchase.
Modern machines are equipped with automated systems that operate efficiently—but are also prone to malfunctions. Therefore, please check the following:
– Control cabinet and electronic components
– Function of the emergency stop switches
– Sensors and limit switches
– Control panel and software version
A test run helps identify errors in the control system right away.
Actual operating hours provide important information about the machine's history. Relevant documents include:
– Maintenance records
– Repair records
– Information on replacement parts
– Modifications or upgrades
– Previous applications
Missing documentation does not necessarily have to be a disqualifying factor—but it should prompt a more thorough review.
A test run under real-world conditions is essential. This will allow you to determine:
– Concentricity and vibration
– Speed and power
– Noise level
– Separation purity (e.g., in granulating or peeling machines)
– Control system response
Only the combination of a visual inspection and a test run provides a complete picture.
Even if your own inspection is thorough, an expert’s opinion is invaluable.
Experienced dealers can identify typical weaknesses in certain manufacturers’ or models’ designs much more quickly and determine whether a machine is worth repairing from a cost-effectiveness standpoint.
Used recycling machines can be an excellent investment—provided their condition, history, and functionality have been carefully inspected. Using a clear checklist helps reduce risks and ensures you make an informed decision. Specialized dealers offering certified used machines provide additional peace of mind and support you with their expertise, service, and spare parts.