2026 How a Multi-Deck Shaking Table Boosts Tungsten Recovery: Full Process & Case Study
2026-06-01
If you're in the tungsten ore processing business, you know the struggle: high density, fine particle size, and the constant challenge of getting every last gram of valuable mineral out of your feed. In 2026, the multi-deck shaking table is not just a trend — it's the go-to solution for operations aiming to boost recovery rates without blowing the budget.
For tungsten miners, especially those dealing with fine-grained scheelite or wolframite, a standard single-deck table often falls short. Enter the multi-deck shaking table from Jiangxi Hengchang Mining Machinery, a powerhouse equipment that is rewriting the rules of gravity separation.
Let's break down the entire process, why it works, and share a real-world case study that shows the numbers don't lie.
Simply put, it's a high-capacity gravity concentrator that uses water flow, vibration, and a grooved surface to separate minerals by density. Unlike the classic one-deck model, a multi-deck unit stacks two, three, or more working surfaces. This doubles or triples your throughput per square meter of floor space.
Think of it like this: One deck can process maybe 1–2 tons per hour. With a 6-deck table, you're looking at 6–12 tons per hour — same footprint, way more profit.
The science is simple yet effective:
Feed Entry: Slurry (solid + water) enters the feed box at one end.On a multi-deck setup, each deck works independently, yet the central drive system ensures all decks operate in sync. Hengchang's precision eccentric drive minimizes vibration leakage, meaning less wear, longer life, and stable performance.
Tungsten is a classic "fine-grain problem child." Most valuable scheelite and wolframite exists in particle sizes between 40–200 mesh. Traditional jigs or spirals struggle with these fine fractions. A shaking table, with its sharp cut point and low turbulence, can recover down to 20 microns — no joke.
Not all shaking tables are created equal. Hengchang's multi-deck model packs several engineering upgrades that matter in the field:
Durable fiberglass bed — resistant to corrosion from acidic tungsten slurry.These features mean less downtime and easier maintenance — a big plus when your operation runs 24/7.
Background: A small-to-medium scale tungsten operation in Jiangxi had been using traditional jigs + spirals for their wolframite ore. Their overall recovery hovered at 68% — a lot of high-value mineral was going to waste.
Problem: The fine-grained fraction (-200 mesh) was nearly untouched by existing equipment.
Solution: The mine replaced two spirals with a 6-deck shaking table from Jiangxi Hengchang Mining Machinery.
| Parameter | Before (Spirals) | After (6-Deck Table) |
|---|---|---|
| Feed grade | 1.2% WO3 | 1.2% WO3 |
| Concentrate grade | 18% WO3 | 38% WO3 |
| Recovery rate | 68% | 92% |
| Processing capacity | 4 t/h | 9 t/h |
| Power consumption | 18 kW | 9 kW |
Result: After three months of operation, the mine's revenue increased by 35% due to higher recovery and improved concentrate grade. The payback period on the 6-deck table was just 4 months.
While this article focuses on tungsten, the multi-deck shaking table is a workhorse for many heavy minerals:
It also works well for sand processing and recovery of fine cassiterite in tailings reprocessing.
| Feature | Multi-deck shaking table | Jigs | Spirals | Flotation cells |
|---|---|---|---|---|
| Recovery for fine particles (<150 mesh) | Excellent | Poor | Good | Excellent (chemicals) |
| Operating cost | Low | Low | Medium | High (reagents) |
| Floor space per ton | Excellent | Good | Poor | Fair |
| Maintenance complexity | Low | Medium | Low | High |
| Particle size range | 20–200 mesh | 5–50 mesh | 50–200 mesh | 200–325 mesh |
For tungsten, if you're targeting the fine fraction (which often contains the highest-grade material), a multi-deck shaking table is your best bet.
To keep your multi-deck table running at peak efficiency:
Check the water distribution: Uneven water flow leads to poor separation.Most importantly, dial in your stroke and amplitude based on your feed's specific gravity. For tungsten, a 10–15 mm stroke and 280–300 strokes/min is a solid baseline. Always do a trial run with fresh ore.
A multi-deck shaking table is ideal when:
You are processing fine-grained heavy minerals (tungsten, tin, tantalum).If you're considering upgrading your tungsten processing line, look at the multi-deck shaking table from Jiangxi Hengchang Mining Machinery. It's designed for real-world conditions, backed by years of field experience, and delivers results that speak for themselves.
Want to know how a 6-deck table could fit your specific tungsten ore? Contact Jiangxi Hengchang Mining Machinery for a free process simulation and payback analysis.
Chinese
