Gear Pumps Manufacturer

Internal Gear Pumps(Series IG ) :

The very first pump produced by TUSHACO in 1968 was an Internal Gear Pumps Model R-1-G for low-pressure burner service - till this day it is in production with great success. Subsequently only TUSHACO had the foresight to introduce several other exotic designs, to take care of growing industrial demands, thus placing themselves on the forefront in the field of Rotary Positive Displacement Pumps. Experience gained over years in designing and building Rotary Pumps combined with knowledge in Application Engineering has resulted in this development of New Stainless Steel Internal Gear Pumps Series specifically for food, chemical and pharmaceutical industry. Computer aided designs, CNC in-house machining facilities and sophisticated test beds, together with TUSHACO dedication made instant success of the New Internal Gear Pumps"IG" series from day one.

Internal Gear Pumps

Innovation, simple construction has ensured very easy maintenance and totally reliable hassle free installation. A glance at the reference list of scores of pumps delivered for New Food Processing and Industrial projects within a short period is a silent testimony for TUSHACO performance.

Working Principle :

TUSHACO Internal Gear Pumps series employs proven Internal Gearing (Gear within Gear) principle for pumping. The main gear is keyed to the drive shaft, and rotates concentric in the pump casing. Idler is located on an eccentric pin on the front cover to rotate freely and meshes with main gear when assembled. A crescent shaped partition precision machined on the front cover maintains a small, but positive clearance to achieve perfect scaling between parts. As the gears come out of mesh, a partial vacuum is created, forcing the fluid to rush into the pump casing and fill in the voids between the teeth. Both Gear Pumps rotating in the same direction of rotation gently transfer the fluid to the delivery port. The resulting action is a smooth-steady flow; low in pulsation, noise and vibration.

Internal Gear Pumps have Single shaft design well supported on outboard bearing (except for one inside sleeve bearing) enables to pump products even with poor lubricating value unlike in the external Gear Pumps. External bearing construction offers easyaccess the pump components i.e., rotor set and even pump casing simply by removing the front cover without disturbing drive parts, bearings etc., and in place. Block pump mounted integrally on hollow shaft gearbox automatically reduces the speed (in several ratios) and enables even the pump rotor to be pulled out without disturbing the drive! It is easily possible to jacket front and rear covers for products heating - thus making the design unique and versatile - ideally suited for process pumping.

Salient Features :

Smooth quite flow
Reversibility

Excellent self priming
Bracket/ Gear box mounting allows free expansion/ contraction - alignment not affected

Insensitive to viscosities
Easy maintenance

All metal construction, no contamination Built-in reducer offers ideal speed range 240~960 RPM

Single sealing, external bearing Slow speeds ensure better pumping & longer life

Low noise and pulsation Reduced maintenance

Construction :

The Internal Gear Pumps series is modular developed with excellent interchangeability. The Internal Gear Pumps is available either as bracket mounted 'BM' or gearbox mounted 'GM" models. The bracket mounted casing construction provides stress free operation while handling products at higher temperatures. The major components are casing, front cover, rear cover, seal box (casing parts) and rotor set (rotor, idler and shaft). Most casing components are made by lost wax process for better finish and grain structure.

'GM' version offers a choice of different speed ratios, making it easy to handle viscous products besides eliminating problems of alignment, extra set of coupling. Standard 4 pole or 6 pole motors can be directly coupled to such units making it very reliable, compact and clean drive. Another unique feature is the adjusting clearance between rotor set and cover by means of rotor positioning device enabling to restore Internal Gear Pumps capacity even after wear and tear after a long use.

Internal Gear Pumps can be equipped with Heating/ Cooling Jacket on front cover/ rear cover and in some cases also Pump Housing. Choice of Mechanical Seal/ Stuffing box is available for shaft sealing.

Typical Parameters :

Capacity	upto	800 LPM
Pressure std.	upto	7 kg/cm2
Pressure spl.	upto	14 kg/cm2
Viscosity	upto	100,000 cSt
Temperature	upto	200°C

Typical Liquid List :

Baby Foods	Fruit Concentrates	Lecithin	Soap
Batter	Fruit Drinks	Lotions	Soups
Butter	Fruit Fillings	Margarine	Starch
Caramel	Fruit Puree	Mayonnaise	Sweeteners
Chewing Gum Base	Fudge	Molasses	Syrups
Chocolate	Gelatin	Oils	Soft Drink Concentrate
Coffee	Glucose	Peanut Butter	Tomato Puree
Cookie Dough	Gums	Printing Ink	Tomato Paste
Cottage Cheese	Honey	Pudding	Tooth Paste
Curd	Ice Cream	Putty	Wheat Gluten
Extracts Flavoring	Icing	Red Chilly Paste	Whey
Fondant	Jams	Salad Dressings	Yeast
Fats	Jellies	Sauce	Yeast Slurry
Frostings	Ketchup	Shampoos	Yogurt