JAW CRUSHER BB 400
The Jaw Crusher BB 400 is specifically designed for accepting large feed sizes up to 220 x 90 mm. The gap width can be set stepless from 0-30 mm. Depending on the sample material, particle sizes down to 2 mm can be obtained, resulting in a crushing ratio of 50. A throughput of up to 400 kg/h is possible with the BB 400.
ROBUST & VERSATILE
- Front door facilitates cleaning of crushing chamber
- Infinite/continuous gap width setting
- Wide range of materials for contamination free grinding
- Collecting receptacle with outlet for continuous operation
- Connector for dust extraction
- Scale indicates jaw wear
- Selection of hoppers for specific applications
SUPERIORITY IN DETAIL
For sample amounts up to 10 l, the BB 400 is used batchwise; for larger volumes it can be operated continuously. Thanks to the modular concept of the housing and frame, this jaw crusher is suitable for a wide range of applications.
ACCESSORIES FOR THE JAW CRUSHER BB 400
- manganese steel
- stainless steel
- tungsten carbide
- steel for heavy-metal free grinding
- NiHard4 steel
HOPPER TYPES
Three hopper types are available for the BB 400 jaw crusher.
The standard hopper can be optionally equipped with a special infeed hopper. This additional hopper can be placed on a table for loading up to 10 l of sample material. By attaching it to the standard hopper with a connection rod, the sample is fed into the BB 400 with the help of a manual pusher.
A special hopper is available for quick and easy feeding of drill cores or large amounts of bulk material. The cover can be closed to serve as splash back protection.
COLLECTING VESSELS
In addition to the standard receptacle which accepts sample amounts up to 10 l, two options are available.
For continuous operation the collection funnel with outlet is the ideal choice.
The large volume receptacle accepts up to 26 liter of sample and comes with a flexible connection flange and a carrier on wheels. This version is the best choice for dust-free operation.
TYPICAL SAMPLE MATERIALS
RETSCH’s powerful jaw crushers are ideally suited for preliminary crushing of construction materials, ores, granite, oxide ceramics, quartz, slag, silicon, coal, tungsten alloys, cement clinker, etc.
FUNCTIONAL PRINCIPLE
| Applications | coarse and pre-crushing |
| Field of application | chemistry / plastics, construction materials, engineering / electronics, environment / recycling, geology / metallurgy, glass / ceramics |
| Feed material | medium-hard, hard, brittle, tough |
| Size reduction principle | pressure |
| Material feed size* | < 220 x 90 mm |
| Final fineness* | < 2 mm |
| Throughput* | 400 kg/h |
| Material of grinding tools | manganese steel, tungsten carbide, steel for heavy-metal free grinding, NiHard4 |
| Jaw width | 220 x 90 mm |
| Gap width setting | 0 - 30 mm |
| Gap width display | scale |
| Zero point adjustment | yes |
| Wearing rate display | yes, up to minus 10 mm |
| Removable hopper | yes |
| Dust extraction unit | yes |
| Central lubrication | no |
| Process line version | optional |
| Collector capacity | 10 l |
| Base frame | vario frame (adjustable for continous crushing) |
| Drive | 3-phase motor |
| Drive power | 5.5 kW |
| Electrical supply data | different voltages |
| Power connection | 3-phase |
| Protection code | IP 55 |
| W x H x D closed | 695 x 1399 x 719 mm |
| Net weight | ~ 400 kg |
| Standards | CE |
FUNCTIONAL PRINCIPLE
The Jaw Crusher BB 400 is a robust and powerful forced-feed crusher. The feed material passes through the no-rebound hopper and enters the crushing chamber.
Size reduction takes place in the wedge shaped area between the fixed crushing arm and one moved by an eccentric drive shaft. The elliptical motion crushes the sample which is moved towards the crushing gap under gravity.
As soon as the sample is smaller than the discharge gap width, it falls into a removable collector within the jaw crusher. The continuous gap width setting with scale ensures optimum size reduction in accordance with the set gap width.