discharging gates

standard discharging gate type 01.1

• for batching continuously flowing bulk materials
• for opening widths ranging from 200 * 200 mm to 600 * 700 mm

shut-off gate type 02

• simple double-flange
• standard shut-off gate
• for use as shut-off gate for belt feeders, screw conveyors, loading chutes, etc.
• for opening widths ranging from 200 * 200 mm to 500 * 500 mm

sealed hopper gate type 03

• sealed hopper gate for fine-grain materials
• for use above belt feeders, loading chutes, rotary feeders, etc.

sealed hopper gate type 08

• sealed hopper gate for fine-grain or dustlike materials
• optionally available with stuffing box seals
• for opening widths ranging from 200 * 200 mm to 500 * 500 mm

quality and continuity

More than 40 years ago, WÖHWA developed the method of blending with discharge gates. The cost-effective and energy saving blending method using the WÖHWA discharge gates replaced the industrial methods commonly used at that time. Currently, our customers use more than 30,000 WÖHWA discharge gates in combination with more than 2,000 WÖHWA blending systems all over the world. Many of these have been operational for decades. WÖHWA is in a position to supply spare parts for all types and versions. The WÖHWA discharge gates are continually upgraded and improved to suit additional customer-specific requirements.

professionalism

WÖHWA Discharge Gates are designed in modules. Every Discharge Gate size and every optional component can be quickly supplied. All parts are hot-dip galvanized. Gear drive and bearings are maintenance-free.

solutions for any applications

A wide product range including discharging gates, emergency shut-off gates, double-flange gates, and sealed hopper gates, with discharge openings of 200 x 200 mm to 800 x 800 mm, covers a numerous variety of applications.

the principle

The bulk material quantity discharging from a silo per unit of time (discharge capacity in m³/h or t/h) remains constant with a given opening area, with consistent and pourable bulk material and with a bin/silo fill level of > 1.5 m.
With crushed stone and gravel, the specific discharge capacity is 40 to 60 t/h per dm² opening area. This hour-glass principle is the most economical production method for blending multiple aggregate gradings. WÖHWA recognized this more than 40 years ago when we introduced the discharging gates into the bulk materials industry.
For the reclaim of poorly flowing bulk materials (e.g. crushed sand or wet sand) or for small blending or loadout quantities, the use of WÖHWA belt feeders or batching combinations (discharging gate above a belt feeder) would be the better choice.