Heavy Industry Equipment

Reject Recovery

Industrial vibrating screens, magnetic separators, and automated rejection chutes for continuous raw material classification and slag processing in heavy metallurgical plants.

Our systems handle abrasive feed streams around the clock, reducing downtime and improving recovery rates in steel and mineral processing lines.
98%Classification accuracy on slag lines
200msRejection chute response time
50µmMinimum ferrous particle capture
24/7Continuous operation without screen blinding

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Our engineers will evaluate your current slag classification line and recommend the right vibrating screen or separator configuration.

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Download the product guide

Get detailed specs on the Series V screen, MDS-400 drum, and ARC-200 chute — including throughput rates and integration notes.

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Why Reject Recovery stands apart

Our vibrating screens, magnetic separators, and rejection chutes are built for continuous duty in slag processing and raw material classification. Here is how we differ from standard industrial equipment suppliers.

Dual-motor vibration consistency Unlike single-drive screens that lose amplitude under load, our Series V maintains steady stroke even when processing 40 t/h of slag.

Standard vibrating screens often rely on a single eccentric motor. When feed density spikes, amplitude drops and classification accuracy falls. Our dual-motor drive with phase-locked control keeps vibration amplitude within ±0.5 mm regardless of load. This means oversize material is consistently rejected and fines pass through without blinding the mesh. In a recent plant trial, the Series V maintained 97% classification efficiency while processing blast furnace slag at 38 t/h — a 12% improvement over the previous single-drive unit.

Rare-earth magnetic recovery down to 50 microns Conventional drum separators miss fine ferrous particles. Our MDS-400 captures iron as small as 50 µm with a self-cleaning discharge.

Most magnetic separators use ferrite or alnico magnets that lose grip on particles below 200 microns. The MDS-400 uses a neodymium-iron-boron array that generates a surface field of 0.6 T. The drum rotates at variable speed — from 2 to 12 rpm — so operators can match retention time to material density. The self-cleaning belt continuously wipes captured iron into a separate chute without interrupting the main flow. In a steel slag recovery line, this separator pulled out 94% of the available ferrous content, reducing waste sent to landfill by 18 t per shift.

Pneumatic rejection in under 200 ms Mechanical diverters are too slow for high-speed lines. Our ARC-200 chute responds in milliseconds, cutting product loss.

Mechanical flap gates or rotary valves take 1–2 seconds to actuate, which means several kilograms of good material are rejected along with the tramp. The ARC-200 uses pneumatic actuators with a response time of 180 ms. The chute lining is replaceable ceramic — not rubber or steel — so it withstands abrasive slag without wearing through every six months. Operators can store up to 20 rejection profiles on the touchscreen, adjusting for different material grades or sensor inputs. One plant reduced their reject waste by 23% after switching from a mechanical diverter to the ARC-200.

Modular deck system for quick mesh changes Changing screen mesh on conventional units takes hours. Our modular decks swap in under 30 minutes.

Standard screen decks are welded or bolted with dozens of fasteners. Replacing a worn mesh requires cutting, grinding, and re-welding — often a full shift of downtime. Our Series V uses a modular deck frame with cam-lock tensioners. Each deck section slides out and a new one locks in place without tools. The tension is preset at the factory, so there is no guesswork. A three-person crew can swap all four decks in 28 minutes. Over a year, this saves roughly 120 hours of downtime compared to conventional designs.

Field-proven in Indian metallurgical plants Our equipment runs in five heavy-industry sites across India, processing slag, ore, and sinter.

We do not sell theoretical performance. Every unit we ship has been tested in real plant conditions. Our first Series V screen has been operating for 18 months at a steel mill in Raipur, processing 300 t of slag per day. The MDS-400 is installed at a ferroalloy plant in Odisha, recovering iron from furnace slag. The ARC-200 chute is used in a sinter plant in Jharkhand, rejecting oversize before the crusher. These installations are open for site visits — plant managers can speak directly with the operators who run our equipment daily.

Scope and definitions

Clarifications on equipment performance and liability

What material sizes can the vibrating screen handle?

The Heavy-Duty Vibrating Screen Series V is designed for continuous classification of materials up to 200 mm feed size. For particles below 5 mm, we recommend a pre-screening stage to avoid excessive wear on the mesh. Actual throughput depends on material moisture content and abrasiveness.

Does the magnetic separator work with wet slag?

The Magnetic Drum Separator MDS-400 operates effectively in both dry and slurry environments. However, for streams with more than 30% moisture by weight, a dewatering step before the drum is advised to maintain separation efficiency. The unit is not rated for submerged operation.

What is the rejection accuracy of the automated chute?

The Automated Rejection Chute ARC-200 achieves a rejection accuracy of ±2 mm for particles between 10 mm and 150 mm. Accuracy decreases for irregularly shaped tramp material exceeding 200 mm in any dimension. Calibration is required after every 5000 cycles or when changing material grade.

Are replacement wear liners included with the initial purchase?

Standard delivery includes one set of wear liners for the chute and one set of screen mesh panels for the vibrating screen. Additional liners and meshes are available as spare parts. Consumables like screen mesh are not covered under the standard warranty.

What is the typical lead time for custom configurations?

Custom configurations, such as altered deck angles or non-standard drum speeds, add 4–6 weeks to the standard production lead time. All custom orders require a signed technical specification sheet before production begins. Rush orders are subject to feasibility review.

Frequently Asked Questions

Straight answers about our vibrating screens, magnetic separators, and rejection chutes for heavy metallurgical plants.

What material sizes can the Heavy-Duty Vibrating Screen Series V handle?

The Series V accepts feed material up to 300 mm and classifies down to 5 mm in a single pass. For finer cuts, a second deck with a smaller mesh can be installed. The screen handles slag, ore, and crushed rock at feed rates up to 150 tonnes per hour.

How does the Magnetic Drum Separator MDS-400 remove fine iron particles?

The MDS-400 uses a stationary rare-earth magnet array inside a rotating drum. As material passes over the drum, ferrous particles are attracted to the shell and carried to a discharge zone where a scraper removes them. The system captures particles down to 50 microns without interrupting the process flow.

Can the Automated Rejection Chute ARC-200 be integrated with existing plant sensors?

Yes. The ARC-200 accepts digital signals from upstream metal detectors, weigh scales, or vision systems via Modbus or discrete I/O. Its pneumatic actuators respond in under 200 milliseconds, diverting oversize or tramp material to a separate discharge. The control panel stores up to 20 rejection profiles for different material grades.

What maintenance is required for the vibrating screen’s deck system?

The modular deck panels can be replaced individually without removing the entire screen. We recommend inspecting the wear liners every 500 operating hours and checking the bolt tension on the screen mesh after each shift change. The dual-motor drive requires only periodic greasing of the bearings.

Do you offer on-site commissioning and operator training?

Yes. Our service team can supervise installation, perform alignment and vibration testing, and train your operators on screen mesh changes, magnetic separator adjustments, and chute programming. Typical on-site support lasts two to three days depending on plant complexity.

Contact our engineering team →

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