A. The structure of Automatic corrective devices (for Fine Chemicals)
The devices with rational structure, the roller easy to Interchange, small correction resistance reduce power consumption, reliable action, sensitive reflection long lasting automatic repeated corrective functionwork in harsh environment, no malfunction, durability, easy to maintain, the belt always run in the middle.
B. Main Specifications of Corrective Device

C. Main Parameters of Corrective Device (for Fine Chemicals)

Item	Units	Parameters
Applied speed	m/s	0.6~3.5
Inclination		0~30o
Correction back Angle		±30°
Correction scope	L	0~120
Mount torque transmission poles	N/m	1~1.6 N/m
Precision of corrective	L	±15

D. Corrective Device Install partitions and supporting volume
The usual partition of ten rollers is 12m, every ten roller need a corrective device.
E. Please attend the details when you make an order according to the standard of DTandTD75 to set up the parameters and size of corrective devices. If your order is special, please give us your device parameters and size. In order to avoid the loss cause by false data, we offer mapping service.

F. About the Installation of Corrective Device
a. Installation of Corrective Device
1 Put roller and bracket at the place selected the bracket at the head of the direction of the belt move.
2 Put the bracket into basethen join bracket and linkage with peglast join linkage and lug with peg.
3 Adjust high of the linkage, lug and bracket, make them at the same high, then lock the peg on bracket.
4 Peg the bracket (Use peg or welding
5 Install the roller and roller bracket, then lock it.

b. Debugging of Corrective Device
Startup the machine, make one side of rollers push the belt and the belt run on middle of crankshaft, then stop the machine and peg the bracket of roller, then the other side.
Notice:
1Roller should keep 20mm higher than bracket
2When Debugging the belt should run along axes, keep the bracket and roller have a right-angle.
3 Distance between two rollers is 10mm.

C. Operation of Corrective Device
1. The device always for one direction, install the main bracket at the direction of roller run, subsidiary bracket at the reverse direction.
2. The roller on subsidiary bracket play a very important role of the device, the roller must keep 5-10mm to the belt, if it’s too near to belt that will damage the roller and belt, if too far from the belt the device wills loss its function.

Maintenance of Corrective Device
1. Inspect the device once a week.
2. Clean the dust once a week.
3. Get rid of rust and painting when inspecting the device.
4. Interchange the damaged components on time.

ZST Corrective Device
It leads the standards of Chinese corrective devices. It is the alternative product of HBR roller slot. The device’ components include 2 bracket, gearing and base. Self-adjustable function, high sensitivitySuitable for all types of belt transportthe max-angle of corrective bracket can adjust is 400