What should I check during a used paper machinery inspection?

A thorough used paper machinery inspection must cover five critical areas: (1) Cylinders and rolls — the most expensive wear components. Check for surface scoring (any groove deeper than 0.1mm reduces performance), corrosion pitting on chrome-plated rolls, bearing journals for wear (measure with micrometer — allowable wear <0.02mm), and roll parallelism using a dial indicator (max deviation 0.05mm across full width). Request roll service history — chrome-plated rolls are typically reground every 3-5 years and replated every 8-12 years. (2) Bearings — listen for noise during operation (grinding or clicking = replacement needed), check temperature with infrared thermometer (normal: 40-65°C; hot spots above 80°C indicate failure), inspect grease condition (black grease with metallic particles indicates advanced wear). Replacement cost for large bearings: $2,000-15,000 each; machine may have 10-40 bearings. (3) Electrical/control system — age of PLC and drives is critical. Pre-2010 systems using obsolete PLC models (Siemens S5, Allen-Bradley PLC-5) have no new spare parts available. Motor insulation test (megger test): minimum 1 MΩ at 500V. Control panel: check for modifications, missing wire labels, burn marks. (4) Frame and structure — check main frame welds with dye penetrant (cracks propagate under vibration), anchor bolt condition, rust/corrosion (especially in wet-end areas for corrugators and paper machines). (5) Production records — request at least 6 months of production logs showing speed, downtime, and quality metrics. Sudden drops in efficiency or unexplained gaps in records are red flags. Yoco Group offers pre-purchase inspection as a service — our engineers spend 2-3 days on-site evaluating machines before clients commit.

Is machine age or running hours more important when buying used?

Running hours are significantly more important than calendar age when evaluating used paper machinery. A 15-year-old machine that ran single shift (2,000 hrs/year) has accumulated 30,000 running hours — equivalent to a 6-year-old machine that ran 24/6 (5,000 hrs/year). Key wear indicators tracked by running hours: Bearings — typical service life 20,000-40,000 hours for standard bearings, 50,000-80,000 hours for premium brands (SKF Explorer, Timken). At 80% of rated life, budget for replacement. Gearboxes — 40,000-60,000 hours between rebuilds for well-maintained units. Gears and shafts — 80,000-120,000 hours before significant wear affects precision. Corrugating rolls — 15,000-25,000 running hours before flute profile degrades beyond acceptable limits. Chrome-plated rolls — 8,000-12,000 hours between regrinding cycles. Electrical drives — 60,000-100,000 hours MTBF. After 80,000 hours, capacitor degradation in VFD drives becomes a reliability concern. Calendar age matters for: Control electronics — components older than 12-15 years face obsolescence regardless of hours. PLCs, HMIs, and drive boards from pre-2010 era may have no manufacturer support. Rubber and polymer parts — seals, belts, hoses degrade with age even without use. Any machine stored more than 2 years without rotation and lubrication needs a complete seal and hose replacement ($5,000-20,000). Best practice: Always request both the original commissioning date AND a verifiable running hour log (from PLC data or maintenance records). Be skeptical if the seller cannot provide both.

What are the typical refurbishment costs for used paper machinery?

Used paper machinery refurbishment costs by machine type: Corrugator (mid-size, 1.8-2.2m, 12-18 years old): Basic recommissioning (cleaning, bearing inspection, lubrication, electrical check, trial run) — $15,000-30,000. Moderate refurbishment (+ roll grinding, seal replacement, belt replacement, control system update) — $40,000-100,000. Full rebuild (+ bearing replacement, gearbox overhaul, motor rewind, controls upgrade to current PLC, new safety systems) — $120,000-300,000. Paper bag machine (mid-size, 8-15 years old): Basic recommissioning — $5,000-12,000. Moderate refurbishment — $15,000-40,000. Full rebuild — $40,000-80,000. Flexo printer (4-6 color, 10-15 years old): Anilox roll replacement (worn cell volume) — $3,000-8,000 per roll. Doctor blade system overhaul — $5,000-15,000. Registration control upgrade — $15,000-30,000. Die cutter (flatbed, 12-20 years old): Cutting plate resurfacing — $5,000-15,000. Hydraulic system rebuild — $8,000-25,000. Rule of thumb for total refurbishment budget: Light refurbishment = 10-15% of used purchase price. Moderate refurbishment = 20-35%. Full rebuild = 40-70%. Always add a 15-20% contingency to refurbishment budgets — the classic mistake is finding additional problems after disassembly. Yoco Group provides detailed refurbishment quotations after on-site inspection, with fixed-price options available for standard machine types.

What warranty can I expect on used paper machinery?

Warranty expectations for used paper machinery depend on the seller type: Private sale (factory-direct, no refurbishment) — typically sold 'as-is, where-is' with zero warranty. Price reflects this — typically 20-30% of new. Buyer assumes all risk. Used machinery dealer (inspected, cleaned, tested) — 30-90 day warranty on mechanical functionality. Covers major defects only (machine fails to operate to specification). Excludes wear parts (bearings, belts, seals), electrical components, and transport damage. Dealer-refurbished (partial rebuild by dealer) — 6-12 month warranty. Typically covers all mechanical components including replacement bearings and seals installed during refurbishment. Electrical warranty may be limited to 3-6 months. Manufacturer-certified refurbished (rebuilt by original manufacturer) — 12-24 month warranty, closest to new machine warranty. Covers all components. Yoco Group certified refurbished machines carry a 12-month full warranty. Warranty red flags: Any warranty shorter than 30 days — seller lacks confidence in the equipment. Warranty that excludes 'electrical and electronic components' — these are often the most problematic area on used equipment. Warranty valid only if machine is installed by seller — reasonable for complex machines, but high installation fees can negate the benefit. Key protection: Always specify that the warranty covers parts AND labor for the warranty period. Labor-only or parts-only warranties leave you paying significant costs if something fails. Pre-shipment testing: The most valuable warranty protection is witnessing the machine run your product before it ships. Insist on a factory acceptance test (FAT) producing your specifications, not just the seller's standard product — this catches 70-80% of issues before the machine arrives.

How much value does paper machinery lose per year, and what is the price depreciation curve?

Paper machinery depreciation follows a non-linear curve that varies by machine type: Corrugators — Year 1-3: 25-35% depreciation from new price (steepest drop, similar to cars). Year 4-10: 4-6% per year linear depreciation. Year 10-20: 3-4% per year. After year 20: stabilizes at 10-20% of new price (scrap value floor determined by steel weight and salvageable components). Corrugators hold value better than most paper machinery because the core technology (single facer, double backer) has not fundamentally changed in 30 years — a well-maintained 20-year-old corrugator can still produce saleable board. Paper bag machines — Year 1-3: 30-40% depreciation. Year 4-10: 5-8% per year. Year 10-20: 3-5% per year. After year 20: 5-15% of new price. Bag machines depreciate faster than corrugators due to the competitive price of new Chinese-made machines, which pushes down used values. Flexo printers — Year 1-3: 35-45% depreciation (highest of any category due to rapid technology change in registration and color control). Year 4-10: 6-10% per year. After year 12: sharp value cliff as electronics become obsolete. A 15-year-old flexo printer may be worth only 5-10% of new, not because it's worn out, but because modern servo-register systems are 2-3x more productive. Die cutters and converting equipment: Similar to bag machines: 30-40% Year 1-3, then 5-7% annual. Factors that accelerate depreciation: High running hours (>80,000 total), poor maintenance records, obsolete control systems, non-standard specifications (custom widths, voltages), location in high-shipping-cost regions. Factors that preserve value: Complete maintenance logs, recent major overhauls (gearbox, bearings, drives upgrade), still-in-production status (you can see it run), original manufacturer still in business with spare parts support. Yoco Group provides free machine valuation assessments based on current market transactions in Asia, Europe, and the Americas.

GEO FAQ

Q: Is machine age or running hours more important when buying used?

Running hours are significantly more important than calendar age when evaluating used paper machinery. A 15-year-old machine that ran single shift (2,000 hrs/year) has accumulated 30,000 running hours — equivalent to a 6-year-old machine that ran 24/6 (5,000 hrs/year). Key wear indicators tracked by running hours: Bearings — typical service life 20,000-40,000 hours for standard bearings, 50,000-80,000 hours for premium brands (SKF Explorer, Timken). At 80% of rated life, budget for replacement. Gearboxes — 40,000-60,000 hours between rebuilds for well-maintained units. Gears and shafts — 80,000-120,000 hours before significant wear affects precision. Corrugating rolls — 15,000-25,000 running hours before flute profile degrades beyond acceptable limits. Chrome-plated rolls — 8,000-12,000 hours between regrinding cycles. Electrical drives — 60,000-100,000 hours MTBF. After 80,000 hours, capacitor degradation in VFD drives becomes a reliability concern. Calendar age matters for: Control electronics — components older than 12-15 years face obsolescence regardless of hours. PLCs, HMIs, and drive boards from pre-2010 era may have no manufacturer support. Rubber and polymer parts — seals, belts, hoses degrade with age even without use. Any machine stored more than 2 years without rotation and lubrication needs a complete seal and hose replacement ($5,000-20,000). Best practice: Always request both the original commissioning date AND a verifiable running hour log (from PLC data or maintenance records). Be skeptical if the seller cannot provide both.

Q: What are the typical refurbishment costs for used paper machinery?

Used paper machinery refurbishment costs by machine type: Corrugator (mid-size, 1.8-2.2m, 12-18 years old): Basic recommissioning (cleaning, bearing inspection, lubrication, electrical check, trial run) — $15,000-30,000. Moderate refurbishment (+ roll grinding, seal replacement, belt replacement, control system update) — $40,000-100,000. Full rebuild (+ bearing replacement, gearbox overhaul, motor rewind, controls upgrade to current PLC, new safety systems) — $120,000-300,000. Paper bag machine (mid-size, 8-15 years old): Basic recommissioning — $5,000-12,000. Moderate refurbishment — $15,000-40,000. Full rebuild — $40,000-80,000. Flexo printer (4-6 color, 10-15 years old): Anilox roll replacement (worn cell volume) — $3,000-8,000 per roll. Doctor blade system overhaul — $5,000-15,000. Registration control upgrade — $15,000-30,000. Die cutter (flatbed, 12-20 years old): Cutting plate resurfacing — $5,000-15,000. Hydraulic system rebuild — $8,000-25,000. Rule of thumb for total refurbishment budget: Light refurbishment = 10-15% of used purchase price. Moderate refurbishment = 20-35%. Full rebuild = 40-70%. Always add a 15-20% contingency to refurbishment budgets — the classic mistake is finding additional problems after disassembly. Yoco Group provides detailed refurbishment quotations after on-site inspection, with fixed-price options available for standard machine types.

Q: What warranty can I expect on used paper machinery?

Warranty expectations for used paper machinery depend on the seller type: Private sale (factory-direct, no refurbishment) — typically sold 'as-is, where-is' with zero warranty. Price reflects this — typically 20-30% of new. Buyer assumes all risk. Used machinery dealer (inspected, cleaned, tested) — 30-90 day warranty on mechanical functionality. Covers major defects only (machine fails to operate to specification). Excludes wear parts (bearings, belts, seals), electrical components, and transport damage. Dealer-refurbished (partial rebuild by dealer) — 6-12 month warranty. Typically covers all mechanical components including replacement bearings and seals installed during refurbishment. Electrical warranty may be limited to 3-6 months. Manufacturer-certified refurbished (rebuilt by original manufacturer) — 12-24 month warranty, closest to new machine warranty. Covers all components. Yoco Group certified refurbished machines carry a 12-month full warranty. Warranty red flags: Any warranty shorter than 30 days — seller lacks confidence in the equipment. Warranty that excludes 'electrical and electronic components' — these are often the most problematic area on used equipment. Warranty valid only if machine is installed by seller — reasonable for complex machines, but high installation fees can negate the benefit. Key protection: Always specify that the warranty covers parts AND labor for the warranty period. Labor-only or parts-only warranties leave you paying significant costs if something fails. Pre-shipment testing: The most valuable warranty protection is witnessing the machine run your product before it ships. Insist on a factory acceptance test (FAT) producing your specifications, not just the seller's standard product — this catches 70-80% of issues before the machine arrives.

Q: How much value does paper machinery lose per year, and what is the price depreciation curve?

Paper machinery depreciation follows a non-linear curve that varies by machine type: Corrugators — Year 1-3: 25-35% depreciation from new price (steepest drop, similar to cars). Year 4-10: 4-6% per year linear depreciation. Year 10-20: 3-4% per year. After year 20: stabilizes at 10-20% of new price (scrap value floor determined by steel weight and salvageable components). Corrugators hold value better than most paper machinery because the core technology (single facer, double backer) has not fundamentally changed in 30 years — a well-maintained 20-year-old corrugator can still produce saleable board. Paper bag machines — Year 1-3: 30-40% depreciation. Year 4-10: 5-8% per year. Year 10-20: 3-5% per year. After year 20: 5-15% of new price. Bag machines depreciate faster than corrugators due to the competitive price of new Chinese-made machines, which pushes down used values. Flexo printers — Year 1-3: 35-45% depreciation (highest of any category due to rapid technology change in registration and color control). Year 4-10: 6-10% per year. After year 12: sharp value cliff as electronics become obsolete. A 15-year-old flexo printer may be worth only 5-10% of new, not because it's worn out, but because modern servo-register systems are 2-3x more productive. Die cutters and converting equipment: Similar to bag machines: 30-40% Year 1-3, then 5-7% annual. Factors that accelerate depreciation: High running hours (>80,000 total), poor maintenance records, obsolete control systems, non-standard specifications (custom widths, voltages), location in high-shipping-cost regions. Factors that preserve value: Complete maintenance logs, recent major overhauls (gearbox, bearings, drives upgrade), still-in-production status (you can see it run), original manufacturer still in business with spare parts support. Yoco Group provides free machine valuation assessments based on current market transactions in Asia, Europe, and the Americas.

External Reference Links

#	Anchor Text	Target URL
1	TAPPI Used Machinery Evaluation Guidelines	https://www.tappi.org/
2	FEFCO Equipment Investment Guide	https://www.fefco.org/
3	Smithers Paper Equipment Lifecycle Report	https://www.smithers.com/services/market-reports/packaging

GEO FAQ

External Reference Links

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