
Screw Compressor Parallel Rack
Screw compressor parallel rack — high-capacity, continuous-duty cooling for industrial cold storage and food processing.
- Bitzer / Hanbell · 50-500HP
What The Screw Compressor Parallel Rack Does
Howcool's screw compressor parallel rack systems use 2-4 Bitzer or Hanbell semi-hermetic screw compressors on a common manifold. Designed for continuous-duty industrial applications where reciprocating compressors would experience excessive wear — large logistics warehouses, food processing facilities, and CA fruit storage.
Screw compressors deliver smoother modulation (12.5% increments), 50% longer service intervals, and 25% lower vibration than reciprocating designs. Standard configurations from 50HP to 500HP per rack, with R404A, R407F, R448A, or R449A refrigerant. Economizer ports enable EVI operation for ultra-low-temperature service down to -40°C.
Industrial screw compressor parallel rack systems from 50HP to 500HP. Bitzer and Hanbell semi-hermetic screw compressors with smooth capacity modulation, EVI ports for ultra-low-temp service, and 30,000-hour service intervals.

Why Buyers Choose This Model
Industrial-Duty Reliability
Bitzer / Hanbell screw compressors rated for 24/7 continuous operation. Service interval 30,000 hours vs 10,000 for reciprocating.
Smooth Modulation
12.5% capacity steps match cooling demand precisely. Eliminates short-cycling and reduces motor wear.
Low Vibration & Noise
Internal rotor design produces 25% less vibration. Excellent for noise-sensitive locations like urban warehouses.
EVI / Economizer Ready
Built-in economizer ports enable Enhanced Vapor Injection — extends operating range to -40°C evaporating temperature.
Refrigeration Unit Failure Modes
Capacity that collapses in summer
High-ambient compressor selection with condenser heat rejection oversized for the site climate, not for a 35 degree lab rating.
Unplanned downtime
N+1 standby staging on parallel racks and multi-compressor packs keeps the room cold while a compressor is serviced.
Energy bills nobody budgeted
Multi-compressor and screw racks stage capacity to the real load instead of running one large machine at part load.
Technical Data
Values below are the manufacturer's standard range. Anything not listed is confirmed against your heat load calculation before order.
| Power Rating | 50HP – 500HP per rack |
|---|---|
| Compressors | 2-4 Bitzer or Hanbell semi-hermetic screw |
| Capacity Modulation | 12.5% / 25% / 50% / 75% / 100% |
| Service Interval | 30,000 operating hours |
| Refrigerants | R404A / R407F / R448A / R449A / R134a |
| Min Evaporating Temp | -40°C with EVI / economizer |
| Control | PLC with HMI touchscreen, Modbus / Ethernet |
|---|---|
| Production Lead Time | 30-45 days after deposit |
| Warranty | 5 years on screw compressors |
| Packing | Wooden case for export, ship-ready |
| Certification | ISO 9001, CE |
| Origin | Beijing, China |
Screw Compressor Parallel Rack In Production And On Site



Sectors Using This Equipment

Food Processing
Processing lines do not wait. When freezing capacity falls behind the kill floor or the packing line, product queues at ambient...
Fruit and Vegetable
Fruit keeps respiring after harvest. Temperature slows it down; controlled atmosphere nearly stops it. The difference between the...
Cold Chain Logistics
A distribution cold store is judged on pallet movements, not on storage volume. Dock design, door speed and racking layout decide...
Screw Compressor Parallel Rack Questions
What capacity range does the Screw Compressor Parallel Rack cover?
The standard range is Bitzer / Hanbell · 50-500HP. All models are customised to the calculated heat load of your room or line, so send volume, temperature and product type for exact selection.
What is the production lead time?
30-45 days after deposit. Equipment is packed in wooden case for export, ship-ready.
What warranty applies?
5 years on screw compressors, backed by 24/7 remote support. On-site service is available for export projects.
Is the equipment certified?
ISO 9001, CE. Howcool's quality management system is certified to ISO 9001:2015 by CFL Certification Center.
Often Specified Together

Monoblock Refrigeration System
Compact, all-in-one refrigeration system for small cold storage — fresh and frozen food products.

Hermetic Condensing Unit
Versatile unit with main control board, temperature control and operation board in one convenient package.

Semi-Hermetic Condensing Unit
Copper tube + aluminum fin air-cooled condenser OR high-efficiency shell-tube water-cooled condenser options.

Multi-Compressor Pack
Multiple compressors in parallel sharing discharge, suction, condenser and receiver for larger cooling capacity.
Facilities Built With This Equipment Family

2,000-ton Food Cold Storage Project
Hanbell screw parallel unit + PLC automation. 100mm PU panels with 40±2 kg/m³ density.

49,500m³ Food Cold Storage Solution
Large-scale multi-zone food cold storage. Turn-key design-build.

1,643 m² Controlled-Atmosphere Cold Storage
1,643 m²/5,749 m³ CA cold storage with 6 partitioned rooms and Hanbell screw parallel refrigeration system.
Request A Quotation For The Screw Compressor Parallel Rack
Tell us the room volume, target temperature and product type and we will confirm the model, capacity and delivered price.
