CITIC Tube Mills are space-saving, compact, high on performance and low on maintenance. This is primarily due to the support bearing design and the mill drive used. The mill is shell-supported, mounted on slide shoe bearings at both ends and made completely as a welded design. The mill with the compact drive version features an INTEGRAL DRIVE, whose planetary gear is mounted to the mill flange. CITIC Tube mills are the result of the most advanced calculation and simulation methods, backed by years of experience. Worldwide we have designed and built more than 1,000 tube mills.

Our driving force

The standard CITIC mill is shell-supported on slide shoes and has a central drive. Torque transmission is effected via the conical discharge end. This cone is welded to the mill shell and has openings for the discharge of material and exhaust gases. The drive flange is connected to the end of the cone. In this way, the drive force is distributed directly and evenly to the mill shell.

All standard types of mill drives can be connected, such as:

Central Drive

INTEGRAL DRIVE

Girth Gear and Pinion Drive

High on performance, low on space requirements: INTEGRAL DRIVE

Our mills for minimum space requirements are mounted on slide shoe bearings and have an INTEGRAL DRIVE. The core of this drive is a two stage planetary gear reducer, which is directly mounted on the end cone. Only one short slide seal at the motor end and a closed oil lubrication system extend the time between oil changes and reduce the risk of entering of dust particles. Installation is fast and easy. No time consuming adjustments. Our INTEGRAL DRIVE is the most economic drive due to its high availability and a mechanical efficiency level of almost 99%.

The main features at a glance:

(1) Extremely compact arrangement

(2) No foundation for the gear reducer

(3) No complicated drive adjustments

(4) The motor can be installed separately from the gears

(5) Does not need to be run in

(6) Low staffing level for operation monitoring

(7)Environment-friendly due to light sealing, No grease required

(8)High availability

(9)High efficiency level as no coupling required on the mill side

Feature
(1) The cylindrical mill adopts the driving type edge-driving, center-driving, edge-driving with multi-point meshing, etc; driven by asynchronous motor +reducer +pinion and gear as well as synchronous motor + air lclutch + pinion and gear.

(2)Generally supported by static-dynamic pressure bearing on both ends. Fuuly closed self-aligning 120º osculation rocker bearing is used. Also single or double slipper staic- dynamic bearings can be used. The bush is made by NC machine.

(3)The large open gear is designed using AGMA standard, Equipped with reliably sealed gear housing and grease ahtomatic spraying lubrication system.

(4)The shell is key part of a mill. Carry out finite element analysis on it with computer to ensure the reliable operation;

(5)The shell is automatically welded, ultrasonic inspected, wholly annealed and machined by large special machine tools on one chucking; there special seal on static-dynamic connection parts , ch as feed and discharge hoper, trunnion, etc, to prevent oil and slurry leakage;

(6)The liner is of wear-resistance material mad by our company, wich has been specially heat-treated, with high hardness and long service life. Also other wear-resistance casting or rubber liner can be used;

(7) There are slow speed drive for medium and large mill;

(8)The high and low pressure lubricating station is equipped for medium and large mill;

(9)The control and protection system is controlled by PLC.