Lubricating System for Equipment　Auto Greastar | IHI Rotating Machinery Engineering Co.,Ltd.

Auto Greastar is a small centralized lubricating system.
It is called small single line, and the system is the same as that of single line.
This system is used to automate/centralize lubrication of various types of small/medium general industrial machines such as car and injection molding machine.
(Both grease and oil are supported.)

Use example

（1）: Transfer machine
（2）: Bus
（3）: Injection machine

This system is applicable to car, agricultural machine, press machine, mining machine, machine tool, iron-making/forging press machine and the auxiliary equipment, rolling machine, shear, leveler, crane, conveyor, waterwheel in electric power plant, papermaking machine, textile machine, printing machine, food machine, packing machine, and other various machines and systems.

Feature

Light, compact and strong (dispensing pressure: 14.7 MPa). Lubricant is fed reliably.
Its versatility allows the system to be altered for the dual line system using a small hydraulic selector valve.
The B type distribution valve can also be used for a medium-sized machine.
Manufactured domestically to ensure safety, security and quality.
Provide a maintenance system by agents providing maintenance service.

Selection table

Oil inlets	Piping distance	Piping method	Driving method	Model	Dispensing pressure	Distribution valve	Controller
Max 100	Max 20 m	Single end line	Electric	SK-505 SK-521	Grease 14.7 MPa Oil 9.8 MPa	U type (B type)	AGT type FGT type
			Pneumatic	SKB-881 SKC-800
			Mechanical	SKA-722
			Manual	SKA-214 SKA-244型			-

Operating temperature: -20 to +60 °C (non condensing)
Note that the system may not be operated depending on the grease type (low-temperature grease recommended especially at 0 °C or below).

Operating principle

The system mainly consists of an oil feed pump, distribution valve and pipe.
The grease/oil fed by the pump moves the pistons of distribution valve one by one by hydraulic pressure (14.7 MPa).
Therefore, a fixed amount of grease/oil is fed regardless of the back pressure of bearing.

Equipment description

Electric pump

SK-505 is a tough product that functions in a severe in-car environment where the pump is vibrated or exposed to the rain.
SK-521 has two outlets, but it can be changed to one outlet. In this case, the dispensing amount will be doubled.

Piping example: SK-521

（1）: Lubricating pump SK-521
（2）: Oil supply pipe
（3）: Distributor U-8R
（4）: Oil supply pipe

Piping example: SK-505

（1）: Lubricating pump SK-505BM

SK-521-2

SK-505BM-1

Model	Tank	Dispensing amount(cc/min)	Size (mm)	Weight (kg)	Driving source
SK-505BM	400 cc 1 L (2 L)	13 or more	Max about L220 x W110 x H330 Low level switch attached to 1 L tank	Max 1.4	24 VDC (100/200 V)*1
SK-521	2 L (6 L) (for 10 L oil)	20 x 2 outlets at 50 Hz 25 x 2 outlets at 60 Hz	Max about L350 x W110 x H390 Low level switch attached to 2 L tank	Max 11.5 (21.0)	200/400 V (different voltage supported)*2

A 400 cc cartridge grease can also be used. In this case, the optional cartridge tank is required.
*1: Shows the case of using the controller AGT-525. A transformer is required separately when 400 V or different voltage is used.
*2: Supported by rewinding of motor.

Pneumatic pump

A small and strong pump that can change the dispensing pressure between 2.9 and 19.6 MPa by supply air.
SKB-881 is a double acting pump that dispenses continuously while air is supplied.
SKC-800 is a single acting pump that dispenses once by a single air supply.

Piping example

（1）: Air-operated lubricating pump SKB-881
（2）: Oil supply pipe
（3）: Distributor U-8R

SKB-881-2

Dispensing pressure and air supply pressure

Dispensing amount and dispensing pressure

Model	Tank	Dispensing amount(cc/stroke)	Size (mm)	Weight(kg)	Driving source
SKB-881	2 L (6L)	According to correlation diagram with supply air	Max about L230 x W190 x H360 Low level switch attached to 2 L tank	Max 3.4	Air
SKC-800	2 L (6L)	1 to 4: A type 0.2 to 1: M type	Max about L250 x W190 x H380 Low level switch attached to 2 L tank	Max 4.3	Air

A 400 cc cartridge grease can also be used. In this case, the optional cartridge tank is required.

Mechanical pump

A machine and chain driving pump. It has two outlets, but it can be changed to one outlet.
In this case, the dispensing amount will be doubled.

Piping example

（1）: Lubricating pump SK-722
（2）: Oil supply pipe
（3）: Distributor U-8RL
（4）: Oil supply pipe

SKA-722R

Model	Tank	Dispensing amount(cc/min)	Size (mm)	Weight (kg)	Driving source
SKA-722 (dedicated for oil)	2 L (10 L)	0 to 1.8 x 1 outlet 0 to 0.9 x 2 outlets	Max about L230 x W145 x H225 Low level switch attached to 2 L tank	Max 4.2	Facility unit

Manual pump

Capable of increasing the dispensing pressure up to 14.7 MPa. This is a small and strong manual pump.
A 400 cc cartridge grease can also be used.

Piping example: SKA-214

（1）: Lubricating pump SKA-214
（2）: Main pipe
（3）: Distributor U-8R
（4）: Lubricating pipe

Piping example: SKA-244

（1）: Lubricating pump SKA-244
（2）: Distributor U-6R

SKA-214-04

400cc grease cartridge

Model	Tank	Dispensing amount (cc/stroke)	Size (mm)	Weight (kg)
SKA-214	400 cc 1 L	1	Max about L163 to 297 x W140 x H315 L: Subtracting handle length from normal length for 1 Ｌ tank	Max 2.8
SKA-224	400 cc 1 L	1	Max about L163 to 297 x W140 x H315 L: Subtracting handle length from normal length for 1 Ｌ tank	Max 2.3

Distribution valve

U type distribution valve
The dispensing amount can be adjusted within the multiplication range of 1 to 20.
Do not plug the outlet of distribution valve. It causes malfunction of entire system.
To reduce the number of outlets, purchase the optional auxiliary metal fitting: AU-15 and AU-26.
The MUM type distribution valve combines the MU type and M type distribution valves.
The MU type and M type distribution valves are delivered separately.

U-8R

U-12M

M type distribution valve

Model	Size (mm)	Weight (kg)	Outlets	Dispensing amount (cc/stroke)
U-*R with instruction rod	Max about L77 x W59 x H66 (U-12R)	Max 0.42 (U-12R)	2 to 12*1	0.3
U-*M with switch	Max about L103 x W59 x H66 (U-12M)	Max 0.48 (U-12M)	2 to 12*1	0.3
MUM combined with Mdistribution valve	Max about L117 x W78 x H93 (MUM-12M (30-30))	Max 0.8 (MUM-12M (30-30))	2 to 16*1	0.3, 1, 2, 3

*1: You can combine two outlets into one using the optional auxiliary metal fitting: AU-15 and AU-26, which helps to reduce the number of outlets.
Do not plug the outlet to reduce the number of outlets. It causes malfunction of entire system.

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