Buyers spend their attention on crushers and their money on screens — usually in that order, and usually the wrong way round. An under-screened plant produces off-spec product that cannot be sold, and a badly fed crusher produces an overloaded one that wears out early. These are the machines that decide whether the line runs at its nameplate.
All screening and feeding equipment is manufactured across our three production bases, together with the conveyors and steel structure. That matters commercially: one supplier is responsible for the interfaces, which is where most multi-vendor plant projects lose weeks.
Included on this page: SJ.Y series circular vibrating screens, large SJ.Y.K forced-synchronisation screens for 400–1,300 t/h plants, SJ.G.Z twin-shaft bar feeders, SJ.G.D vibrating feeders and SJ.W vibrating hopper feeders, with full model tables. Dewatering screens (SJ.TS) are covered on the Sand Washing & Fines Recovery page, where they belong in the water circuit.
Product and workshop photographs from our own production lines — Hangzhou, Weihai and Wuhu.
Design & working principle
- Circular vibrating screens (SJ.Y) — 2- and 3-deck arrangements, 2,200–3,000 mm wide, up to 850 t/h, with side-tensioned or bolt-in decks.
- Large forced-synchronisation screens (SJ.Y.K) — block-eccentric exciters, decks to 3,600 × 8,000 mm and 1,300 t/h, for plants where ordinary screens run out of area.
- Twin-shaft bar feeders (SJ.G.Z) — the primary feeder for jaw circuits: the bar grizzly scalps fines before they reach the crusher, which raises effective crusher capacity and cuts wear.
- Vibrating feeders (SJ.G.D & SJ.W) — steady, controllable feed for secondary and tertiary machines; the difference between a cone running at rated capacity and one running in surge.
- Self-fabricated structure & conveyors — chutes, bins, frames and belt conveyors built to the same drawings as the machines, so the line fits.
Parameter table
Published as a real HTML table, not a PDF or an image — so it can be read, copied and indexed. Figures are from our own product documentation; the datasheet and GA drawing follow on request.
| Model | Deck size (mm) | Inclination (°) | Feed size (mm) | Speed (r/min) | Double amplitude (mm) | Capacity (t/h) | Motor | Power (kW) | Weight (t) |
|---|---|---|---|---|---|---|---|---|---|
| SJ.2.Y.A.24.60 | 2,400×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 180–450 | Y2-200L-4 | 30 | 8.7 |
| SJ.3.Y.A.24.60 | 2,400×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 200–500 | Y2-200L-4 | 30 | 10.7 |
| SJ.2.Y.A.24.70 | 2,400×7,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 250–560 | Y2-200L-4 | 30 | 9.5 |
| SJ.Y.3.A.24.70 | 2,400×7,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 280–600 | Y2-225L-6 | 30 | 12 |
| SJ.2.Y.A.27.60 | 2,700×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 230–700 | Y2-200L-4 | 30 | 11 |
| SJ.Y.3.A.27.60 | 2,700×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 280–760 | Y2-225S-4 | 37 | 12 |
| SJ.2.Y.A.30.60 | 3,000×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 300–800 | Y2-200L-4 | 30 | 12 |
| SJ.Y.3.A.30.60 | 3,000×6,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 350–850 | Y2-225S-4 | 37 | 13 |
| SJ.Y.2.A.22.70 | 2,200×7,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 200–530 | Y2-225L-6 | 30 | 9.3 |
| SJ.Y.3.A.22.70 | 2,200×7,000 | 18/20/22 | ≤150 | 780–820 | 8–10 | 200–530 | Y2-225L-6 | 30 | 11.3 |
Prefix 2. or 3. denotes number of decks. Type A denotes side-tensioned deck mounting. Capacities are for dry screening of medium-hard crushed rock.
| Model | Trough W×L (mm) | Trough area (m²) | Max feed lump (mm) | Max capacity (t/h) | Motor power (kW) | Double amplitude (mm) | Weight (t) |
|---|---|---|---|---|---|---|---|
| SJ.G.Z.11.50 | 1,100×5,000 | 5.5 | 600 | 500 | 22 | 8–10 | 7.3 |
| SJ.G.Z.13.60 | 1,300×6,000 | 7.8 | 800 | 600 | 30 | 8–10 | 8.3 |
| SJ.G.Z.15.60 | 1,500×6,000 | 9.0 | 1,000 | 800 | 30 | 8–10 | 9.5 |
| SJ.G.Z.18.60 | 1,800×6,000 | 10.8 | 1,200 | 1,000 | 37 | 8–10 | 10.6 |
| SJ.G.Z.20.60 | 2,000×6,000 | 12.0 | 1,500 | 1,500 | 45 | 8–10 | 12.0 |
| Model | Trough W×L (mm) | Trough area (m²) | Feed size (mm) | Installation angle (°) | Double amplitude (mm) | Motor power (kW) | Weight (t) | Dimensions (mm) |
|---|---|---|---|---|---|---|---|---|
| SJ.G.D.09.40 | 900×4,000 | 3.6 | 350 | 8–12 | 8–10 | 5.5×2 | 3.2 | 4,045×1,610×1,823 |
| SJ.G.D.11.49 | 1,100×4,900 | 5.39 | 650 | 8–12 | 8–10 | 7.5×2 | 4.55 | 4,995×1,790×1,755 |
| SJ.G.D.13.60 | 1,360×6,000 | 7.8 | 800 | 8–12 | 8–10 | 11×2 | 6.1 | 5,570×1,998×1,962 |
| Model | Deck size (mm) | Inclination (°) | Decks | Feed size (mm) | Speed (r/min) | Double amplitude (mm) | Capacity (t/h) | Motor power (kW) |
|---|---|---|---|---|---|---|---|---|
| SJ.3.Y.K.24.72 | 2,400×7,200 | 18–22 | 3 | ≤150 | 800 | 8–10 | 400–700 | 22×2 |
| SJ.2.Y.K.24.72 | 2,400×7,200 | 18–22 | 2 | ≤150 | 800 | 8–10 | 400–700 | 22×2 |
| SJ.3.Y.K.30.72 | 3,000×7,200 | 18–22 | 3 | ≤150 | 800 | 8–10 | 600–1,000 | 22×2 |
| SJ.2.Y.K.30.72 | 3,000×7,200 | 18–22 | 2 | ≤150 | 800 | 8–10 | 600–1,000 | 22×2 |
| SJ.3.Y.K.30.72X | 3,000×7,200 | 18–22 | 3 | ≤150 | 740–800 | 8–10 | 600–1,000 | 30×2 |
| SJ.2.Y.K.30.72X | 3,000×7,200 | 18–22 | 2 | ≤150 | 740–800 | 8–10 | 600–1,000 | 30×2 |
| SJ.3.Y.K.36.80 | 3,600×8,000 | 18–22 | 3 | ≤150 | 900 | 8–10 | 740–1,300 | 45×2 |
| SJ.2.Y.K.36.80 | 3,600×8,000 | 18–22 | 2 | ≤150 | 900 | 8–10 | 740–1,300 | 45×2 |
Block-eccentric exciters with forced synchronisation keep the vibration pattern stable at these widths — that is what makes 3,600 mm decks usable on a 1,000 t/h line. Suffix X denotes the higher-power exciter set.
| Model | Dimensions (mm) | Trough (mm) | Trough area (m²) | Max capacity (t/h) | Max feed lump (mm) | Installation angle (°) | Double amplitude (mm) | Motor power (kW) | Weight (t) |
|---|---|---|---|---|---|---|---|---|---|
| SJ.W.11.18 | 2,120×1,750×984 | 1,100×1,800 | 1.98 | 400 | ≤350 | 8–12 | 8–10 | 1.5×2 | 1.2 |
| SJ.W.12.15 | 2,120×1,850×984 | 1,200×1,500 | 1.8 | 450 | ≤350 | 8–12 | 8–10 | 1.5×2 | 1.3 |
| SJ.W.15.20 | 2,320×2,150×1,032 | 1,500×2,000 | 3 | 500 | ≤350 | 8–12 | 8–10 | 3.0×2 | 1.6 |
| SJ.W.18.20 | 2,350×2,450×1,032 | 1,800×2,000 | 3.6 | 550 | ≤350 | 8–12 | 8–10 | 3.0×2 | 1.8 |
Configuration & options
Deck configuration
2 or 3 decks, side-tensioned or bolt-in panels, polyurethane or wire mesh media.
Screen media
Wire mesh, polyurethane or rubber — selected from your abrasiveness and your acceptable maintenance interval, not from a catalogue default.
Drive
Motor wound to your supply; VFD for screens where feed rates vary materially through the shift.
Structure & conveyors
Self-fabricated steel structure, chutes, bins and belt conveyors, designed as one package with the machines.
Wet-process package
Water spray points and wet-season screening setup for this page's screens and feeders. The full water circuit — sand washers, SJ.TS dewatering screens, cyclone fines recovery — is on the Sand Washing & Fines Recovery page.
How to choose the right model
- Size screens by the tonnage you must separate, not by what the crusher produces. Screening is where plants lose their nameplate capacity, and it is the cheapest place to add margin at design stage.
- Give us your required product sizes and your market's spec limits before we size the deck. The mesh apertures and the number of decks follow from the specification, not the other way round.
- Always include a scalping feeder ahead of the primary. The cost of a bar feeder is routinely paid back by the increase in effective jaw capacity and the reduction in jaw-plate wear.
Delivery & service commitments
| Item | Commitment |
|---|---|
| Standard machine lead time | 60 days from order confirmation |
| Annual production capacity / monthly shipments | 1,000 units per year · 100 units per month (all ranges) |
| Spare parts supply | Within 2 months worst case; typically far faster for models in current production |
| Engineer attendance on site | Within 10 days of the requirement being agreed, for export markets |
| Remote support | Response within one working day; included, not charged |
| Warranty | Terms stated in the contract in the same words published on this site |
| Installation & commissioning | Guidance and supervision by our engineers, through to acceptance at rated capacity |
| Buyer provides | Site civil works, electrical installation and site access — drawings and answers supplied |
We supply the machines, the drawings, the commissioning support and the parts. We do not operate your plant after handover.
Common questions
Can you supply the conveyors and steel structure too?
Yes — fabricating the structure and conveyors is part of what we do, and it removes the interface arguments that cost multi-supplier projects weeks. We supply the complete mechanical package: machines, chutes, bins, frames and belts.
How do I know how many decks I need?
It is set by your product sizes plus your market's spec. If you sell 0–5, 5–10, 10–20 and 20–40 mm, that is three cuts and normally a 3-deck screen, or two screens in series if capacity demands it. Send your product list and we will return the deck arrangement.
Do screens work in humid, wet-season conditions?
With the right setup: polyurethane media, larger apertures with a wider screen, and water spray where the feed is washed. Blinding — wet fines blocking the mesh — is the classic failure of tropical screening, and it is designed out rather than fixed later.