The AGICO girth gear is made of high-quality materials and is designed according to the operating characteristics of ball mills, rotary dryers, and rotary kilns to ensure long-term stable operation and extend its service life. AGICO has been engaged in large-scale machinery manufacturing for more than 30 years and has strong steel-casting ...

- c e n t r a l drive or girth gear drive by w. ackle zurich switzerland introduction . For medium and high capacity cement mills particularly, this question presents itself to the cement manufacturer again and again.

Girth gears are manufactured from alloy steel castings with a capacity of up to 150 tons or Ø12.5m per gear set. We manufacture pinions and gearbox internals from through-hardened or case-hardened alloy steel forgings. Gear tooth and root areas are subjected to grinding with the latest generation Klingelnberg Höfler profile grinding ...

The main gear is cut from a special gear steel casting and is made split and reversible. The pinion, usually integral with the pinion shaft, is cut from an alloy steel forging and heat treated prior to cutting the teeth. The pinion shaft is double ended so it is also reversible. All ball Mill gearing is designed in accordance with sound ...

Ball Mill Drives. We can provide all elements of a mill drive system as a fully optimised solution to suit your process exactly, or individual mill drive gearboxes, girth gears, pinions and couplings as required. Book an …

Comparison between girth gear drive and central drive. = - - - ; = ----- - ' I - - - - - Example : Ball mill 9000 H P Motor speed Mill speed R/L ill diameter Mill bearing 990 rpm 14 rpm 5m 22 m ----- Project A Project B ----- Two-pinion girth gear drive Fig. 2A Central drive Fig. 2B 1 Annulus, 2 pinions 1 Double planetary gear 2 Reducing gears ...

The AGICO girth gear is made of high-quality materials and is designed according to the operating characteristics of ball mills, rotary dryers, and rotary kilns to ensure long-term …

The ball mill diagram shows the main parts of a ball mill, including the feeding device, the cylinder, the discharge device, the hollow trunnion, the transmission device, the gear cover, the girth gear, the pinion, and the motor. The ball mill can be operated in a wet or dry way, depending on the material properties and the intended use.

Mill drives . Central drive -Gear and pinion drive. Concerning the efficiency of the ball mill drives, i. e. trunnion connected drive (TCD) versus gear and pinion drive (GP), it can be …

The MAX Drive powers vertical roller mills up to 15,000 kW with two spur gear drive units that mesh with the girth gear under the mill table. Ball and grinding mills, kilns and dryers are all operated with girth gears – but the girth gear is only one part of the power train.

Flange-mounted girth gears, the more common of the two, are most frequently utilized in "cold" processing equipment such as SAG (semi autogenous grinding) mills and ball …

The material fed through the mill is crushed by the impact and ground as a result of the friction between the balls. The drive system can either consist of a central drive …

Ball mill. Ball mills are used to grind and mill various materials. Our drive solutions from perfectly compatible components (from the industrial gear unit through to the girth gear) provide the necessary power. Flexible drive solutions for use in ball mills. A ball mill is a horizontal cylinder filled with steel balls or the like.

Girth Gear and Pinion Drive Ball Mill A classic and robust design meant for all site locations, user-friendly, low maintenance, less capital cost, easy availability of spares. We bring forth a highly advanced Ball Mill, specifically engineered for both wet as well as dry cement grinding applications.

Cement Ball Mill. Air Swept Coal Mill. Coal ball mill. Raw material ball mill. Slag ball mill. Steel Slag ball mill. Ceramic ball mill. Fly ash ball mill. Over flow ball mill. Wet ball mill. Grid Ball Mill. Rod mill. Conical Ball Mill And Design. Ore Ball Mill. Center drive ball mill. Edge drive ball mill. Large Ball Mill For Sale

• 22 MW GMD for 28' ball mill • 28 MW GMD for a 40' SAG mill • 28 MW GMD for 42' SAG mill Whether it is size or an installation at the highest altitude (4600 m.a.s.l.), ABB's GMDs are well positioned to contribute to the building of larger and ever more powerful mills. — Leading the gearless mill drive evolution

Ball mill 9000 HP Motor speed 990 rpm Mill speed 14 rpm R/L ill diameter 5 m Mill bearing 22 m ----- ----- Project A Two-pinion girth gear drive Fig. 2A 1 Annulus, 2 pinions 2 Reducing gears, each 2-stage 2 Main motors 2 Turning gears Project ---- B ----- Central drive Fig. 2B 1 Double planetary gear 1 Main motor ...

An inefficient ball mill is a major expense and could even cost you product quality. ... one which services the girth gear guard and intakes more dust, and a second which supplies oil for the fast-rotating gearing and bearings and stays clean. If requested, however, the mills can be provided with a central drive: the FL MAAG CPU planetary ...

With a long history of reliability and performance, our MAAG® GEAR CPU Gear Unit delivers optimum power transmission as part of a robust, long-term grinding solution for ball mills. Our modern manufacturing methods and tooling machines enable us to deliver state-of-the-art gear units. This two-stage planetary gear offers an impressive service ...

The girth gear is typically mounted around the circumference of the machinery, often on the underside of the machinery. Girth gears are often used in rotary kilns, rotary dryers, and ball mills. Girth gears are utilized in a variety of mining, cement, and minerals processing applications where downtime is not an option, such as copper, gold ...

Larger torques of up to 4,000 kNm are serviced by a combination of our XP series industrial planetary gear units and the X series industrial bevel-helical gear units. Large girth gears are installed around the cylinder to rotate the horizontal ball mill cylinders. A pinion connects these directly to the industrial gear unit.

Flexible and Precise Gear Units for Optimum Tooth Mesh. Ball mills and rotary kilns are most challenging applications that demand a big deal from the drive system. ... The main motor is connected to one side of the gear unit, while the auxiliary drive is connected to the other side. The pinion at the mill's girth gear can be connected via a ...

Ball mill for cement grinding. An inefficient ball mill is a major expense and could even cost you product quality. The best ball mills enable you to achieve the desired fineness quickly and efficiently, with minimum energy expenditure and low maintenance. With more than 4000 references worldwide, the FL ball mill is proven to do just that.

TITAN BALL MILLS. Based on the MPT TITAN™ design, the Mills are girth gear & dual pinion driven with self-aligned flanged motors, running on hydrodynamic oil lubricated bearings. The TITAN design enables you to …

The drive system can either consist of a central drive (central gear unit: helical gear unit or planetary gear unit) or a girth gear unit with pinion design (central gear unit: helical gear unit). Our planetary industrial gear units and the helical and bevel-helical gear units are perfectly compatible with both designs.

PQ-N4 series planetary ball mills may be used for mixing, homogenizing, fine grinding, mechanical alloying, cell disruption, small volume high-tech material production and even colloidal grinding. They are the ideal wet/dry milling tools for acquiring research samples with high efficiency and low noise. Vacuum jars may be used to process sample ...

Installation and alignment between girth gear and pinion of ball mill. / by admin. There are two kinds of transmission forms of ball mill, i.e. center …

The huge ring gear is the central component of the rotary kiln and ball mill, and it must drive the entire cylinder for an extended period of time. As a result, firms have very high quality requirements for big ring gears in real production.

Applications. Central mill drive. More drive, lower running costs. Harsh working conditions and high dust concentrations in the production of cement, limestone and gypsum place high demands on the drive system In the case of central drives, the mill is driven from the end face. Since there is no girth gear transmission, relatively large gear ...

optimum power transmission and speed reduction for your ball mill. The standard for central driven ball mills today, our MAAG® CPU Gear drives hundreds of raw and …