The ZL28/ZL28D series integrated transmission is produced by our company for backhoe loader market. Our company adheres to the principle of creating high-end products based on quality, and focuses on the high-end supporting market with high quality.
There are currently two models of ZL28 series integrated gearbox:
1. ZL28 mechanical high and low speed shifting,achieves four Forward four Reverse, torque converter and transmission 2-in-1 integrated transmission.
2. ZL28D fully electronically controlled gear shift, achieves four Forward four Reverse, torque converter and transmission 2-in-1 integrated transmission.
Can be matched with multiple engines, and after matching, the torque converter outputs a large torque.
The gearbox gears can achieve four in and four out, meeting different working conditions during transition.
This dual variable transmission has two options: mechanical high and low speed shifting and fully electronic control shifting, which can be selected according to different vehicle models.
| Main specifications | |||||
| Rated input rotation speed | 2000-2400 | r/min | |||
| Rated input power | 70-90 | kw | |||
| Zero speed torque coefficient K0 | 3.0±0.05 | ||||
| Zero speed condition nominal torque Mbgo | 75±5 | N.m | |||
| High efficiency working condition nominal torque Mbgn | 70±5 | N.m | |||
| Maximum efficiency of torque converter η max | >84% | ||||
| TRANSMISSION SPEED RATIO 1 | TRANSMISSION SPEED RATIO 2 | ||||
| Forward Gear | I=6.682 | II=1.67 | Forward Gear | I=5.376 | III=1.344 |
| II=3.636 | IV=0.909 | II=3.073 | IV=0.768 | ||
| Reverse Gear | I=6.849 | III=1.712 | Reverse Gear | I=5.245 | II=1.311 |
| II=3.727 | IV=0.931 | II=2.998 | IV=0.749 | ||
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