Buyer question / selection note
Choose from measured feed state, liberation size, magnetic response, water balance, and product targets. MarsCrusher currently publishes five CTB wet-drum models covering 15–140 t/h with listed drum-surface fields of at least 120–135 mT; a dry route needs separate dry-feed testwork and equipment data.
Technical review updated September 3, 2026
01 / Decision summary
02 / Published model data
MarsCrusher currently publishes five CTB permanent-magnet wet-drum models, not a dry-separator range. Use this table to bound the wet route; a dry-route proposal needs its own dry-feed test and comparable equipment data.
Swipe or scroll horizontally to review every model field.
| Model | Drum size | Drum speed | Surface field | Catalogue capacity | Motor power |
|---|---|---|---|---|---|
| CTB-618 | Φ600×1800 mm | 40 r/min | ≥120 mT | 15–30 t/h | 2.2 kW |
| CTB-712 | Φ750×1200 mm | 35 r/min | ≥120 mT | 15–30 t/h | 2.2 kW |
| CTB-924 | Φ900×2400 mm | 25 r/min | ≥135 mT | 30–55 t/h | 4 kW |
| CTB-1030 | Φ1050×3000 mm | 22 r/min | ≥135 mT | 80–120 t/h | 7.5 kW |
| CTB-1230 | Φ1200×3000 mm | 17 r/min | ≥135 mT | 100–140 t/h | 7.5 kW |
Source: MarsCrusher CTB model data. Field values are listed drum-surface values; grade and recovery still depend on mineralogy, liberation, slurry density, drum loading, and tank-flow testwork.
03 / Engineering notes
If grinding or classification already produces slurry, a wet drum can avoid an added drying step. Naturally dry, coarse pre-concentration duties may justify a dry route, but moisture variation and dust control must be included in that test rather than assumed away.
Run magnetic characterization and separation tests on representative ore domains at the proposed liberation size. Record feed grade, concentrate grade, recovery, mass pull, moisture or slurry density, and repeatability. A single magnetic-susceptibility number cannot size the production circuit.
For the wet route, shortlist CTB models by measured solids flow and drum loading, then check tank flow, distribution across drum width, water balance, field test record, and access for liner work. Compare a dry proposal with the same feed sample and product targets rather than comparing nameplate tonnes alone.
04 / Visible FAQ
Review model specifications and application limits before requesting a quote so the supplier can check the recommendation against a defined duty.
The CTB wet-drum magnetic separator is intended for strongly magnetic minerals such as magnetite and for selected iron-removal duties. Recovery and concentrate grade depend on mineralogy, liberation size, field strength, drum loading, and tank configuration.
Ball mills for wet or dry grinding after crushing in copper, gold, iron ore, graphite, and limestone circuits. Overflow or grate-discharge configurations can serve primary grinding, regrinding, or closed-classifier loops before flotation, magnetic separation, or gravity recovery.
Project check
A useful reply needs the inputs that control feed acceptance, reduction ratio, product split, and real hourly duty.
06 / Related references
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