1. Application of hydraulic jaw crusher.
Jaw crusher is a kind of heavy duty machine which can crush materials into even granularity. This crushing machine has the characteristics of high reduction ratio, high productivity, simple structure, and reliable performance, etc. It is convenient to maintain and practical to use.
Our Jaw crushers can be used in mining industry, metallurgical industry, construction, smelting, road building, chemical industry, and other fields, for crushing various materials whose compressive strength is not more than 350 MPa.
Our Jaw crushers can be used in mining industry, metallurgical industry, construction, smelting, road building, chemical industry, and other fields, for crushing various materials whose compressive strength is not more than 350 MPa.
2. Special advantage of DongMeng PEV hydraulic jaw crusher.
A). Reliable quality certified by CE and reaches to European standard.
B). It’s the same principle as Eruopean style.
C). The output sizes can be adjusted during machine working, no need to turn off to adjust the output size.
3. Structure characteristics and working principle of PEV hydraulic jaw crusher
A). Working jar: provide the push force, when overload, the oil pressure increased, piston move to the right side to limit the biggest crushing force.
B). Energy-saving device: to reduce the pulse move of the oil system.
C). Cam gear: It is the device movable up and down to input mechanical energy on the plunger type oil pump.
D). Oil pressure adjusting device: Through the work of piston’s move with the oil pressure going up and down, it turns to a certain degree by anticlockwise or clockwise direction under the driving power of plug device effecting on the oil pump’s plunger.
E). Plunger type of oil spray pump: Providing high oil pressure. There is a screw shape of flume on the surface of plunger, the pore canal of flume is connected to the pump chamber of plunger, and there are oil feed-in and return pores, the effective oil track is controlled by the plunger and plunger cover, when the plunger turns in anticlockwise, the effective oil track will be reduced, and the pump oil decreased too; whereas, the pump oil increased.
F). Operating valve: it is designed by ourselves; there are two pistons with different area. When the upper pressure is higher than the down pressure, the piston move upward and discharge oil to the upper chamber; when the upper pressure lower or equal to the downside pressure, the piston will be on its high-point position, the oil discharging opening will be stopped, and the hydraulic system works under normal condition.
4. Technical specifications
See below table
| Model | PEV-400x600 | PEV-500x750 | PEV-600x900 | PEV-750x1060 |
| Max.feed size(mm) | 400x600 | 500x750 | 600x900 | 750x1060 |
| Rotating speed(r/min) | 275 | 250 | 250 | 230 |
| Electric motor power(kw) | 30 | 55 | 75 | 110 |
| Close discharge size(mm) & Capacity(t/h) | 50 & 26 | 50 & 40 | 50 & / | 50 & / |
| 70 & 38 | 70 & 60 | 70 & / | 70 & / | |
| 80 & 45 | 80 & 70 | 80 & 105 | 80 & / | |
| 100 & 60 | 100 & 90 | 100 & 130 | 100 & / | |
| 125 & 75 | 125 &112 | 125 & 160 | 125 & / | |
| 150 & / | 150 & 130 | 150 & 182 | 150 & / | |
| 200 & / | 200 & / | 200 & / | 200 & 294 | |
| Weight(kg) | 6400 | 11100 | 14100 | 22200 |