Vodič za kupca Eddy Current Sorter: Proizvođači, Cijena i Specifikacije

Vodič za kupca Eddy Current Sorter: Proizvođači, Cijena i Specifikacije

An eddy current separator price only makes sense when it is tied to a defined feed material, particle-size range, throughput, recovery target, and supply scope. Two machines with the same belt width may have very different magnetic rotors, controls, feeders, guarding, and service support. Comparing only the number at the bottom of a quotation can therefore lead to an undersized machine, hidden project costs, or disappointing metal recovery.

This buyer’s guide explains how to compare specifications, choose between small and large systems, evaluate eddy current separator manufacturers, and decide whether a used machine is worth the risk. It also provides a practical request-for-quotation checklist so every supplier prices the same duty and scope.

Buyer’s shortcut: Ask every supplier to quote against one written feed specification and one equipment-scope checklist. The lowest comparable total cost is more useful than the lowest base-machine price.

An eddy current sorter is normally installed after ferrous metal removal. A rapidly rotating magnetic rotor induces electrical currents in conductive non-ferrous particles, creating a repelling force that changes their discharge trajectory. If you need a technical explanation before comparing machines, read how an eddy current separator works.

Key Factors Influencing Eddy Current Separator Price

The price of an eddy current separator is driven by the separation duty and by what the quotation includes. Magnetic design is important, but it is only one part of the installed system. The feeder, conveyor, splitter, control panel, support frame, chutes, safety guards, commissioning, freight, and spare parts can materially change the final project cost.

Magnetic Strength, Rotor Design, and Pole Count

The magnetic rotor is the core of the machine. High-grade rare-earth magnets, accurate pole assembly, rotor diameter, pole count, and magnetic circuit design all affect manufacturing cost and separation performance.

A higher pole count creates more rapid magnetic field reversals at a given rotor speed. That can benefit fine conductive particles, provided the feed is dry, thin, and evenly distributed. Larger particles may not need the same high-frequency configuration. The best specification is therefore not simply the strongest rotor or the largest number of poles; it is the rotor that matches the target metal and size fraction.

Buyers should also distinguish between concentric and eccentric rotor designs. A concentric rotor produces an active field around the head-pulley circumference. An eccentric rotor concentrates the effective separation zone near the discharge point and may reduce prolonged interaction with stray ferrous pieces. Both designs can be appropriate, but a supplier should be able to explain the choice using your material data and test results.

Do not accept “high magnetic strength” as a complete specification. Request the magnet material, rotor geometry, pole configuration, maximum and recommended operating speed, bearing arrangement, and the conditions under which performance claims were measured.

Working Width and Required Throughput

A wider belt usually means a larger rotor, longer shafts, more magnets, a stronger frame, and higher drive capacity. It therefore increases the base-machine price. The correct width depends on more than tonnes per hour: bulk density, particle shape, maximum lump size, allowable bed depth, and feeder distribution all matter.

Energycle-ovi high-recovery eddy current separator for fine aluminum is available in effective belt widths from 330 to 1,200 mm. That range allows a buyer to match the active separation area to a laboratory-scale, upgrade, or production-line duty instead of paying for unused width or overloading a narrow belt.

An undersized separator can create a deep material bed that shields fine aluminum and carries contamination into the metal product. An oversized separator costs more and may run inefficiently if the feed never covers the working width. Ask the supplier to show the assumed belt loading and feed depth behind its capacity recommendation.

Conveyor Belt and Mechanical Specifications

The belt passes directly over the high-speed magnetic rotor, so its thickness, material, tracking, joint design, and wear resistance affect both separation and maintenance. A thin, non-conductive belt keeps particles close to the magnetic field, while a durable surface resists cuts from glass and sharp scrap. Those requirements must be balanced for the actual waste stream.

Price can also change with:

  • Variable-speed rather than fixed-speed belt control.
  • Abrasion-resistant or oil-resistant belt material.
  • Automatic belt tracking and misalignment protection.
  • Sealed bearings and dust protection.
  • Stainless steel or coated contact parts for corrosive environments.
  • Heavy-duty guards for sharp, dense, or hot feed.

A low quotation may use a standard belt that is unsuitable for the feed. Request the belt manufacturer or grade, thickness, expected service conditions, replacement price, and lead time.

Feeding, Splitter, Controls, and Supply Scope

Even the best rotor cannot separate particles hidden in a deep or uneven feed layer. A matched vibratory feeder, spreading section, and adjustable splitter are often essential to meeting the recovery target. They may be optional in one quotation and included in another.

Use the following table to normalize supplier proposals.

Price driver What changes the cost What the buyer should request
Magnetic rotor Magnet grade, rotor type, diameter, pole count, machining precision Rotor drawing or specification, operating-speed range, and material-test result
Working width 330–1,200 mm or another project-specific width Effective magnetic width, assumed feed depth, and design throughput
Pokretna traka Belt grade, drive power, speed control, tracking, frame duty Belt specification, 0–100% speed range, replacement cost, and wear parts list
Sustav hranjenja Hopper, vibratory feeder, spreader, and controls Maximum feed size, usable width, and proof of even full-width distribution
Splitter and chutes Manual or powered adjustment, number of products, wear liners Adjustment range, access method, chute drawings, and liner material
Electrical package PLC, VFDs, sensors, local voltage, enclosure rating, safety circuit Component brands, electrical standard, I/O list, and remote-support method
Structure and safety Support frame, platforms, guards, dust covers, access doors General-arrangement drawing and included safety devices
Usluge Material testing, freight, installation, commissioning, training, warranty Itemized inclusions, exclusions, schedule, and acceptance criteria

When searching for an eddy current separator for sale, compare the total delivered and commissioned scope. A base machine without a feeder, frame, chutes, or site wiring is not directly comparable to a turnkey package.

Small vs. Large Scale: Which Size Fits Your Recycling Line?

A small eddy current separator is often the right choice for a narrow, pre-screened fine fraction, a pilot plant, a low-throughput line, or a retrofit with limited space. A larger unit is more suitable for continuous production, higher volume, or a wide upstream conveyor. “Small” should describe the required duty, not lower magnetic quality.

The Energycle product range provides a useful width framework for early selection:

Raspon modela Effective belt width Suitable starting point Main design question
40A 330 mm Pilot work, low-volume fine fraction, narrow upgrade line Can the feeder maintain a thin single layer at peak flow?
65A 520 mm Small production line or one classified side stream Is the incoming conveyor wider than the active magnetic zone?
80A 670 mm Medium-duty recycling line Will the material be distributed across the full width?
100A 840 mm Continuous industrial recovery Does the throughput include surge conditions or only the average?
120A 1,040 mm High-volume mixed-waste or scrap line Are frame, access, and downstream chutes sized for the wider stream?
140A 1,200 mm Large-scale production and broad feed conveyors Can upstream preparation maintain consistent size and bed depth?

These widths are selection references, not automatic capacity promises. Before choosing a size, provide the supplier with representative bulk density and a mass-flow profile. A line averaging 2 tonnes per hour but surging to 5 tonnes per hour needs a different design from a stable 2-tonne-per-hour feed.

Choose by the Target Fraction, Not Total Plant Capacity

An ECS usually treats only one part of the plant flow. Screening may divide the feed into fine, medium, and coarse fractions, while air or ballistic separation removes light material. Size the separator for the fraction that actually reaches its belt, including surges and recirculated material—not the nameplate capacity of the entire recycling plant.

Check Space, Height, and Discharge Geometry

The machine must fit the process, not just the floor. Confirm inlet height, discharge height, service clearance, guard removal space, belt replacement path, control-panel location, and access to the splitter. A compact machine can still require significant vertical space for feed and product chutes.

Allow for Future Feed Changes

If the plant expects a moderate throughput increase, selecting the next width may be economical. Buying excessive spare capacity, however, can raise capital and energy costs without improving recovery. Ask the manufacturer to calculate the maximum acceptable bed depth and show whether a future increase can be achieved through feeder, belt-speed, or operating-schedule changes.

How to Evaluate Eddy Current Separator Manufacturers

Strong eddy current separator manufacturers should do more than submit a motor list and a price. They should translate your feed data into a process recommendation, document the rotor’s mechanical quality, demonstrate separation with representative material, and define what happens after delivery.

Verify Rotor Dynamic Balancing and Mechanical Integrity

The magnetic rotor operates at high speed. Small mass imbalances can create vibration, bearing load, noise, heat, and premature failure. Ask how the rotor is dynamically balanced, at what speed it is tested, what acceptance tolerance is used, and whether a balancing or vibration report is supplied with the machine.

Also request information about shaft material, bearing brand and arrangement, rotor-shell construction, temperature monitoring, overspeed protection, and maintenance intervals. A manufacturer unwilling to document these items is asking the buyer to accept avoidable mechanical risk.

Review Rotor and Belt Speed Control

Independent variable-frequency control for the magnetic rotor and conveyor belt gives operators two important adjustment tools. Rotor speed changes the frequency of the magnetic field. Belt speed changes particle momentum and time in the active zone. The two settings should be tuned with feed rate and splitter position.

Energycle’s fine-aluminum separator supports rotor speeds up to 4,000 RPM and an adjustable belt-speed range of 0–2 m/s, depending on configuration. The meaningful question is not only the maximum figure, but whether the control system maintains stable speed under load, logs alarms, prevents unsafe overspeed, and allows repeatable recipes for different materials.

Demand Material Testing and Measurable Acceptance Criteria

Send a representative sample whenever possible. Include the natural moisture, size distribution, contamination, and particle shapes expected in production. A clean handful of aluminum pieces does not represent a tonne-per-hour mixed-waste stream.

Agree on how test performance will be calculated:

  • Recovery: target non-ferrous metal captured in the metal product divided by target metal in the feed.
  • Purity: target metal in the recovered product divided by the total recovered product mass.
  • Protok: sustained feed rate during the test, not a short peak.
  • Availability: operating time excluding agreed maintenance and external stoppages.

Record feed mass, product mass, sampling method, test duration, machine settings, and laboratory results. Recovery and purity should always be reported together because moving the splitter can improve one while reducing the other.

Audit Service, Spare Parts, and Documentation

After-sales capability affects the real cost of ownership. A lower purchase price can disappear quickly if a belt, bearing, sensor, or drive takes weeks to replace. Ask each supplier for the standard warranty, response time, remote diagnostics, commissioning scope, training plan, recommended spares, and parts availability.

Use this manufacturer scorecard before placing an order:

Evaluation area Evidence to request Warning sign
Application engineering Written feed assumptions and selection calculation Recommendation based only on tonnes per hour
Rotor quality Dynamic balancing, vibration, and overspeed test records “Factory standard” with no measurable report
Separation proof Representative material test with recovery and purity data Demonstration using hand-picked metal pieces
Kontrole PLC/VFD brands, alarm list, safety interlocks, and wiring drawing Unidentified components or fixed-speed operation
Proizvodnja Rotor assembly, belt tracking, guarding, and factory test procedure No inspection access or incomplete documentation
Usluga Commissioning plan, response method, warranty, spare-parts lead time Sales contact only, with no technical support path
Reference Comparable material, particle size, and operating environment References unrelated to the proposed duty

Manufacturer pages from Bunting i Goudsmit show how rotor type, feeder design, particle size, and model selection vary by application. Use such information to ask better questions, then require test evidence for your own material.

Used vs. New Eddy Current Separators: Is It Worth the Risk?

A used machine can reduce the initial purchase price and may be available quickly. It can be a rational choice when the feed is non-critical, the duty is well understood, a thorough inspection is possible, and compatible parts remain available. The risk rises when the rotor history is unknown or when the machine must meet a guaranteed recovery target.

Used-equipment listings often provide belt width, year, or basic configuration while leaving the price and critical rotor condition to direct inquiry. That makes inspection and total retrofit cost more important than the listing description.

Faktor odluke Used separator New manufacturer-direct separator
Initial cost Usually lower, before transport and refurbishment Higher, but quoted for a defined specification
Rotor condition Operating hours, impact history, balance, and magnet health may be unknown New rotor with documented factory testing
Process fit Width and rotor design are fixed by the available machine Rotor, width, belt, feeder, splitter, and controls matched to the feed
Kontrole May be obsolete or incompatible with local standards Current components and project-specific electrical design
Jamstvo Limited or none Manufacturer warranty with defined support
Zamjenske dijelove Availability may depend on age and original supplier Recommended spares and current drawings available
Start-up risk Higher if dismantling, transport, alignment, and recommissioning are required Factory acceptance test and planned commissioning available
Garancija ispunjenja Rare and difficult to establish Can be tied to agreed test material and criteria

Used-Machine Inspection Checklist

Before buying used, obtain the serial number, original drawings, operating hours, service records, rotor-speed history, and reason for sale. Then inspect or test:

  1. Rotor vibration across the intended speed range.
  2. Bearing temperature, noise, lubrication, and end play.
  3. Rotor shell for impact damage and contamination.
  4. Magnetic performance at several points across the working width.
  5. Belt wear, tracking, joints, pulleys, and tensioning system.
  6. Motor, VFD, PLC, sensors, emergency stops, and electrical enclosure.
  7. Frame alignment, corrosion, guards, splitter, and chutes.
  8. Availability and price of the replacement belt, bearings, drive, and control components.

Add dismantling, freight, import costs, foundation changes, electrical conversion, refurbishment, missing guards, installation, commissioning, and lost production to the used purchase price. If the machine cannot be tested under power or the rotor condition cannot be documented, price the deal as a high-risk rebuild—not as a production-ready separator.

For a quality-critical line, a new manufacturer-direct machine often provides better value because the rotor, belt width, controls, and feeding system are selected together and supported by measurable acceptance criteria.

Contact Energycle for a Custom Price Quote

The most reliable quotation starts with a clear material and process brief. To receive a useful recommendation and a comparable eddy current separator price, send Energycle the following information:

  • Material source and a description of the complete feed mixture.
  • Target metals, approximate concentration, and required recovery or purity.
  • Minimum, typical, and maximum particle size.
  • Bulk density, moisture, temperature, and abrasive or corrosive conditions.
  • Average and peak throughput reaching the ECS.
  • Existing shredding, screening, air separation, and magnetska separacija equipment.
  • Available installation width, length, height, and discharge elevations.
  • Local voltage, frequency, electrical standard, and preferred control system.
  • Required feeder, support frame, platforms, guards, chutes, dust covers, and spares.
  • Delivery destination, commissioning needs, and target start-up date.

Energycle can review your material, recommend a suitable rotor and belt width, and define an equipment scope that makes supplier quotations easier to compare. For fine non-ferrous recovery, review the high-recovery eddy current separator for fine aluminum or use the broader eddy current separator selection guide to prepare your project.

Contact Energycle for a custom separator recommendation and itemized quotation. Include a representative sample or material analysis when available. The team can then evaluate separation feasibility, machine size, upstream preparation, and the practical balance between recovery, purity, investment, and operating cost.

Autor: energycle

Energycle is a leading global provider and manufacturer specializing in cutting-edge, high-efficiency plastic recycling solutions. We are committed to engineering and producing robust, reliable machinery that encompasses the entire recycling spectrum – from washing and shredding to granulating, pelletizing, and drying. Our extensive portfolio includes state-of-the-art washing lines tailored for both flexible films and rigid plastics (such as PET and HDPE), powerful industrial Sjeckalice, precision Granulatori i drobilice, efficient Strojevi za peletiranje, and effective Drying Systems. Que se trate de una única máquina de alto rendimiento o de una línea de producción completa y personalizada, Energycle ofrece soluciones minuciosamente diseñadas para satisfacer sus necesidades operativas únicas y especificaciones de material.

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