GNR YM1240 — Mobile Washing & Screening Plant (compact)
The GNR YM1240 is a compact mobile washing-and-screening plant rated at 60-100 tph that tucks into tight yards. Feeding a washing screen and a screw from one sand hopper, it cleans river and mountain sand with water and drives off clay and silt. It accepts 0-100 mm feed, is loaded by bucket, ties into a generator where mains is absent, and sits on an 18,000 kg one-piece chassis.
How the compact wash chain works
The trick behind its small size is a two-step wash chain bolted onto the dry screen:
- Washing screen: the feed is screened under water spray while clay and silt are torn off the surface.
- Screw: spirals scrub the fine sand, overflow the silt-laden water and release clean sand.
- Stockpiling: the washed fractions go onto by-product belts and separate heaps.
Technical figures
| Parameter | Value |
|---|---|
| Capacity | 60-100 tph |
| Max. feed size | 0-100 mm |
| Transport dimensions (WxLxH) | 4200 × 10800 × 4500 mm |
| Weight | 18,000 kg |
| Equipment | Sand hopper, washing screen, fine material screw |
| Power | Mains or generator |
Output sizes and mesh apertures are settled at the ordering stage to match the material.
Moisture and dewatering
At the screw discharge, moisture usually sits in the 15-30% band. Want a drier, stockpilable sand fit for a mortar/concrete recipe? Add a hydrocyclone and a dewatering screen to the chain and moisture is pulled to 8-20%. Clay severity is read off the Methylene Blue Value (MBV) or the Sand Equivalent (SE).
Why compact YM, not ME
YM washes (screw + washing screen); ME screens dry. Unable to break clay or shed moisture, the ME series falls short on clayey/wet feed. The YM1240 meets that need in the smallest body (60-100 tph, ~1200×4000 mm screen); when tonnage climbs the YM1650 (120-180 tph) steps in. Its dry counterpart is the GNR ME1650.
Where it is used
River and mountain sand washing, clean aggregate for concrete plants, and construction/chemical-industry sand grades. It runs off a generator on off-grid yards; its small body cuts haulage and shortens erection.
One-desk washing line
Washing lines stay weak at most builders; General Makina hands over screw, bucket-wheel and log washers plus dewatering with a batching plant covered on the same desk. The YM1240 is drawn as a line integrated with crushing-screening, extra washers and a batching plant — one contact, matched spares.
Frequently Asked Questions
Does the GNR YM1240 clean clay?
Yes; the washing screen and screw wash the sand with water and separate clay and silt. That is the core difference from the dry-screening ME series.
What are capacity and feed?
60-100 tph, 0-100 mm feed. It is loaded by bucket and stockpiles on by-product belts.
How wet is the washed sand?
Typically ~15-30% at the screw discharge. Add a hydrocyclone + dewatering screen and it drops to 8-20% — stockpilable, fit for mortar/concrete control.
Why the compact YM1240?
It packs washing-and-screening into the smallest body; it fits tight yards and hauls cheaply. For higher tonnage, choose the YM1650.
How do I get price and delivery?
Send General Makina your target capacity, the material's clay content and your moisture/output expectations; a project-specific configuration, price and lead time come as a quotation.
Wear and spare parts: Spare & Wear Parts
Definitions of technical terms: Glossary
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