
Semi-Hermetic Condensing Unit
Copper tube + aluminum fin air-cooled condenser OR high-efficiency shell-tube water-cooled condenser options.
- 2HP – 50HP
- R404A / R507A / R134A
What The Semi-Hermetic Condensing Unit Does
Howcool Semi-Hermetic Condensing Units use Bitzer / Bock / Frascold semi-hermetic reciprocating compressors — the industry standard for industrial refrigeration above 10HP. Compared to hermetic units, semi-hermetics are serviceable: valve plates, pistons and electrical components can be replaced in the field, extending lifespan to 15-20 years.
Suitable for mid-to-large cold storage projects, logistics centres, food processing lines, pharmaceutical facilities and industrial chillers. Open-type drive allows integration with oil separators, economizers, liquid receivers and filter-driers for optimal system performance. Supports R404A / R507A / R22 / R134a refrigerants.
Our Semi-Hermetic Condensing Units come with your choice of a copper tube and aluminum fin air-cooled condenser or a high-efficiency shell-tube water-cooled condenser. Flexibility ensures you can pick the option that best suits your site conditions.

Why Buyers Choose This Model
Bitzer / Bock Compressors
Premium semi-hermetic reciprocating compressors. Field-serviceable — pistons, valves, bearings can be replaced without scrapping the unit.
Industrial Capacity
10HP to 80HP single-compressor units. Typical COP 2.2-2.8 for medium temp, 1.5-1.9 for low temp.
Complete Accessories
Oil separator, liquid receiver, sight glass, filter-drier, HP/LP controls, phase-protection all integrated on one frame.
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 | 2HP – 50HP |
|---|---|
| Cooling Capacity | 2.5 - 50 kW |
| Compressor Type | Semi-hermetic reciprocating |
| Oil Cooler | Optional water/air cooling |
| Suction Filter | Replaceable cartridge |
| Sight Glass | Liquid line indicator included |
| Operation Limit | -40℃ to +50℃ ambient |
| Condenser Type | Air-cooled (Cu+Al) or Water-cooled (Shell-tube) |
| Compressor Brand | Bitzer / Frascold / Refcomp |
| Temperature | Medium / Low / Ultra-low |
|---|---|
| Refrigerant | R404A / R507A / R134A |
| Application | Commercial and Industrial |
| Production Lead Time | 20-30 days after deposit |
| Warranty | 5 years on core components |
| Packing | Wooden case for export, ship-ready |
| Certification | ISO 9001, CE |
| Origin | Beijing, China |
| After-Sales | 24/7 remote support, on-site available |
Semi-Hermetic Condensing Unit In Production And On Site





Sectors Using This Equipment

Food Processing
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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...
Semi-Hermetic Condensing Unit Questions
What capacity range does the Semi-Hermetic Condensing Unit cover?
The standard range is 2HP – 50HP. All models are customised to the calculated heat load of your room or line, so send volume, temperature and product type for exact selection.
Which compressor brands are used?
Bitzer / Frascold / Refcomp. The brand can be fixed at order if your maintenance team standardises on one.
What is the production lead time?
20-30 days after deposit. Equipment is packed in wooden case for export, ship-ready.
What warranty applies?
5 years on core components, 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.

Multi-Compressor Pack
Multiple compressors in parallel sharing discharge, suction, condenser and receiver for larger cooling capacity.

Screw Compressor Parallel Rack
Screw compressor parallel rack — high-capacity, continuous-duty cooling for industrial cold storage and food processing.
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 Semi-Hermetic Condensing Unit
Tell us the room volume, target temperature and product type and we will confirm the model, capacity and delivered price.
