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Screw compressors for the refrigeration industry VMY, VARISCREW an VARISCREW+
oil-injected screw compressor manufacturers stages in 3 types on construction of different design with a total of 20 sizes. Suction volume 233 m³/h - 9.900 m³/h |
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The supply range of Grasso screw compressors manufacturers comprises 30 types, subdivided into 4 series (SH, MC, LT and C) which differ from each other in the volume flow ranges and in the degree of integrating functional components of the package into the compressor housing. Further advantages for our customers are: patented rotor profile, gas pulsation protection, Vi-control in full and part load operation and a design to ensure easy maintenance.
Grasso now has one of the most extensive and comprehensive range of screw suppliers of compressors (Grasso SC) providing uniform steps of capacity with 30 different sizes.
Grasso screw compressor packages are available in single (Grasso SP1) or two-stage (Grasso SP2) versions and as DuoPack executions (Grasso SPduo). |
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Overview of HSO Open type compressors supplier
Models available
HSO 3200 4 sizes: 3216, 3218, 3220 & 3221
Displacement at 50Hz: 286/343/415/469 m3/h
HSO 4200 4 sizes: 4221, 4222, 4223 & 4224
Displacement at 50Hz: 508/616/722/808 m3/h
HSO 2000 4 sizes: 2024, 2028, 2031 & 2035
Displacement at 50Hz: 853/1273/1728/2486 m3/h
Designed for refrigeration, air conditoning and heat pump applications
-Applied to single stage and multi stage systems
-For use with R717 (Ammonia), normal refrigerant and many other process gasses
-Oil injected for maximum reliability
-Can be industrial inverter controlled
Comprises of the following:
-Open drive single screw design
-Suitable for all refrigerants including ammonia
-Stepless capacity control
-Oil industrial drain connection
-2 built in electrovalves (HSO 3200 & HSO 4200)
-Oil injection connection
-Universal shaft gasket (suitable for all refrigerants)
-Economiser connection
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The supply range of Grasso screw compressors comprises 30 types, subdivided into 4 series (SH, MC, LT and C) which differ from each other in the volume flow ranges and in the degree of integrating functional components of the package into the compressor housing. Further advantages for our customers are: patented rotor profile, gas pulsation protection, Vi-control in full and part load operation and a design to ensure easy maintenance.
Grasso now has one of the most extensive and comprehensive range of screw supplier of compressors (Grasso SC) providing uniform steps of capacity with 30 different sizes.
Grasso screw compressor packages are available in single (Grasso SP1) or two-stage (Grasso SP2) versions and as DuoPack executions (Grasso SPduo). |
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Overview of HSS Semi-hermetic manufacturer of compressors
Models available
HSS 3100 5 sizes: 3118, 3120, 3122 & 3123
Displacement at 50Hz: 175/213/250/292/336 m3/h
HSS 3200 4 sizes: 3216, 3218, 3220 & 3221
Displacement at 50Hz: 286/343/415/469 m3/h
HSS 4200 4 sizes: 4221, 4222, 4223 & 4224
Displacement at 50Hz: 508/616/722/808 m3/h
Designed for high temperature applications
-Designed for incorporation into factory built chillers
-Designed for compressor packs using HFC refrigerants or R22
-Capable of operating without cooling over a limited range
-Can be industrial inverter controlled
Comprises of the following:
-Semi-hermetic single screw design
-Optimised for R134a, R407c & R22
-Suction strainer
-Stepless capacity control system (2 built in coil valves)
-Discharge stop cock
-Internal relief valve
-Integral grease separator (HSS 3100 & HSS 3200)
-Flanged oil industrial separator (HSS 4200)
-Discharge check tap
-Suction flange with tail & joint
-Liquid injection adapter
-Sight glass (x2)
-Oil charge
-2 pole electric motor with sensor protection
-Electronic protection (INT 69TM)
-Economiser connection
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| The EMA series of electrical actuators are available with Machine Screw and Ball screw manufacturer drives . They are suitable for low load, medium duty and high speed applications with dynamic ratings up to 10kN and 5500 mm/min. |
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| Wide selection of sizes, high thrust capacities and broad range of mounting flexibility. Maximum dynamic thrust capacities range from 125 lbs to 4700 lbs. Strokes in any incremental length up to 60 inches depending on body size. Conform to both NFPA and ISO industry mounting standards. |
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LES 4 (LF 4)
Ball screw Feed Axis
Linear Unit LES 4 with ball screw drive
aluminium shaft profile W 75 x H 75 mm, anodized
clamping surface and profile bottom side plan-milled
2 precision steel shafts Ø 12 h6, material Cf53, hardness 60 ± 2 HRC
aluminium slide blocks WS 5/70, 2 x WS 5/70 (70 mm long) or WS 5/200 (200 mm long), adjustable free of clearance, central lubrication
ball screw pitch 2.5/4/5/10/20 mm
profile sealing by abrasion-resistant sealing lips
aluminium die-cast end plates
2 limit and/or reference switches, repeatability ± 0.02 mm
driving steel collar with sealed angular contact ball bearings suppliers prepared either for flange- mounted direct drive modules or lateral belt drive modules
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ER - Linear actuator manufacturers
The ER Series is available in two profile sizes as a belt-driven or ballscrew-driven unit. The load-suppliers of bearing carriage is supported either by precision caster bearing wheels or by an internally mounted square rail bearing. Combined with a Parker Hannifin stepper or servo motor system, the ER Series offers full programmability, high resolution and repeatablity. Backed by worldwide application support, the ER Series is the ideal solution to many linear motion applications.
ER Series Linear Actuator suppliers
Two profile sizes: (ISO32 & ISO50 )
Belt-driven or ballscrew-driven
Six ISO actuator mounting styles
Roller bearing carriage assembly
Square rail bearing option for greater load carrying capability |
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Venture Ball screw actuators combine a highly efficient long life Suppliers of ball screw with a DC voltage electronic motor providing a high performance ready to install electric linear drive system.
Standard strokes 4, 8, 12, 18, 24, 32, 36, and 40 inches (custom lengths available)
30% duty cycle motor rating
Available options;
Professional clutch
Limit switches manufacturers
Reed, Hall Effect, Manufacturer of potentiometer and other sensor options
3000 lb static capacity / 1500 lb dynamic compression or tension
Lifetime lubrication
Designed for outdoor use
Compression or tension loads
Trunnion, Clevis, or Tube clamp suppliers mounting
High strength steel tube assembly with all-steel load support members
Efficient, long life Ball Screw
12VDC, 24VDC, 36VDC, 90VDC, or 120VDC for use with Rectified 120VAC Gearbox Design |
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