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Refrigeration Compressors
We offer three types of refrigeration compressor like open drive compressor, close coupled compressor and semi hermetic compressor. With plenty of models to choose from, our compressors have been presented in 1/3 HP to 25 HP. Our compressors have their usages in various areas and industries. Package AC’s, Bus Air Conditioning, mobile refrigeration, chillers, menthol plants, ice-cream hardening & storage and pre cooling systems are some of the areas of application for our compressors.

refrigeration compressors manufacturer
High Speed Refrigeration Compressors
Crankcase: Manufactured with close grain graded cast iron under strict quality control. Precision machined on multi axis CNC horizontal and vertical boring machines ensuring Accurate alignment and perfectly round honed bores to fine tolerance of 5 microns.

Crankshaft: SG lron as per lS standards of High Tensile Exceptionally Wear Resistant. Accurately machined, Hardened, ground bearing surface. Dynamically balanced to minimise vibration and smooth operation.

Connecting Rods: Forged Aluminium as per lS standards. Accurately machined, diamond tooled and perfectly aligned bores for extra fine finishing and accuracy.

Pistons, Gudgeon Pins and Piston Rings: Aluminium alloy pistons with optimized design for low power consumption and oil-free compression. Gudgeon Pins of case-hardened alloy steel and Chromium-plaled piston rings for low frictional losses and long service life.


Precision made bimetallic bushes and crankshaft thrust washers, accurately fitted for maximum working life- easily replaceable.

Crankshaft Oil Seal: Flexible Multi - spring precision seal, continuously lubricated and cooled by a pressurized oil stream resulting in excellent stability and insignificant thermal load - replaceable without dismounting the compressor.

Lubrication System: Pressure oil lubrication by means of Crankshaft-driven gear type pump, draws oil from the sump via fine mesh strainer and magnetic plug, this being easily removable for cleaning. Results in low oil-migration and positive lubrication to all bearings, wear sudaces and the shaft seal chamber - Ensures long life of the compressor.

Value Plate:
Highly efficient and extremely robust value plate design, manufactured in -house with hardened, tempered and lapped Flapper steel value reeds for best performance at high compression ratios, minimum power consumption and quiet operation.

Compressor Tests:
Every compressor is exposed to rigorous running tests, volumetric efficiency tests as per standards.

Finish on Compressors:
Chemically degreased three coats of paint applied- two anti-rust undercoats and a final finishing paint coat.


Compressors
Type
Displacement
with 1450
min-1
Displacement
with 1750
min-1
Number
of
Piston
Cylinders
Bore
Stroke Oil
Charge
Litres
Weight Power
at
Shaft
Conriections Cooling
Water
2 m3/h 2 m3/h ømm mm dm3 Kg SL DL 3
SK 2T
W2TA-K1
19,6 23,7 2 60 40 1,75 51 3/7.5 kW 4/10 H.P. 28  11/8 22  7/8 1/2"
SK 2N
W2NA-K1
28,0 33,8 2 60 57 1,75 52 28  11/8 22  7/8 1/2"
SK 4T
W4TA-K1
39,3 47,4 4 60 40 4,0 77 5.5 / 7.5 kw 7.5/10H .P
TO
22kW 30 H.P.
35  11/8 28 1/8 1/2"
SK 4P
W4PA-K1
47,1 56,8 4 55 57 4,0 77 35  11/8 28 1/8 1/2"
SK 4N
W4NA-K1
56,1 67,7 4 60 57 4,0 77 35  11/8 28 1/8 1/2"
SK 4H
W4HA-K1
73,6 88,8 4 70 55 4,5 129 22 kW 30H .P
TO
45 kW 60H .P
42  15/8
NW 40
28 11/8
NW 28
3/4
SK 4G
W4GA-K1
84,5 102,0 4 75 55 4,5 129 42  15/8
NW 40
28 11/8
NW 28
3/4
SK 6H
W6HA-K1
1 10,5 133,4 6 70 55 4,7 153 54 21/8
NW 50
35 13/8
NW 32
3/4
SK 6G
W6GA-K1
126,8 153,0 6 75 55 4,7 153 54 21/8
NW 50
35 13/8
NW 32
3/4
SK 6F
W6FA-K1
151, 6 183,0 6 82 55 4,7 161 54 21/8
NW 50
42 15/8
NW 40
3/4


(1) Ammonia R717 /NH3 design (2) Minimum Speed 2T to 4G 750rpm.6 H to 6F goorpm (3) Water cooled cylinder head ( accessory standard w ith R 717lNH3 design


slow speed refrigeration compressors
Slow Speed Refrigeration Compressors
The heavy duty R-121R-22 open type compressors are suitable for Air Conditioning deep Freezers, package. They require very low maintenance and the durability is very long.

Compressor: High Volumetric efficiency, quiet operation and long life attained by accurate machining and close inspection of each. Compressors run in, completely tested wash and dehydrated.

Crank case & Cylinder Body: Integral casting of semi steel with finned cylinders and large oil separating suction chamber, Cylinders are diamond bored and honed resulting in absolutely round, accurately aligned bores with mirror like finish. Antifriction white metal/bronze/roller bearings are used as main bearings which are accurately bored and Grooved for perfect lubrication. Visible oil level sight glass and targe oil filter hole provided.

Pistons and Gudgeon Pins: Pistons of cast nickel Chrome lron/Aluminium are accurately machined and balanced. Gudgeon pins of case-hardened alloy steel are fitted in the pistons.

Connecting Rods:
Forged steel/Aluminium. Crank pin and Gudgeon pin pores are accurately machined.

Crank Shaft:
Top quality forged steel with accurately lapped bearing surface dynamically balanced with counter weights.

Compressor Seal:
Non corrosive flexible lubricated Mechanical type.

Valve Plate:
Both suction and discharge valves are contained in valve plate. Valve seats of high brinell hardness, accurately ground and lapped. Better design, ultra superior valve steel discs and large gas passages results in high efficiency low friction and quiet operation.

Lubrication:
Splash systesm supplies lubricant to all bearings, seal and cylinder walls, Oil level should be in the centre of sight glass.

Motor:(Optional)
Surtable H .P. Three phase squirrel cage induction motor especially Designed with high starting torque and low power consumption.

Starter:(Optional)
Direct on line type with low voltage and bimetal thermal overload Protection and push button reset. For remote mounting.

Suction Strainer & Oil Separator:(Optional)
Large removable screen fitted in suction chamber completely Protect valves. Low gas velocity causes separation of entrained oil from suction gas.

Base: (Optional)
Heavy angle iron members securely bolted to m a. leg. Adjustable motor mounting provides regulation of belt tension and alignment.

Refrigerant:
Freon R -12/22*

Drive:
Heavy cast iron dynamically balanced fly wheel attached to shaft by tapered fit key and lock nut, smooth running, matched, V -belts give long life. Steel safety guard is rigidly attached to the base.

Suction Valve:
Brass valve fitted on suction chamber, two ways shut off with gauge connections.

Discharge Valve:
Brass valve two ways shut off with gauge connections fitted on the side of the head.
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