Refrigeration plants engineered for Pakistan's grid, climate, and uptime.

Refrigeration is the engine room of any cold-chain facility. The right plant runs reliably for decades on Pakistan's grid, recovers gracefully from disturbances, and delivers exactly the temperature your product needs at the lowest viable energy cost. The wrong plant becomes a permanent operating headache.

Refrigerants we work with

Ammonia (NH₃) systems

The thermodynamic gold standard for large industrial loads — meat processors, distribution hubs, ice plants, large freezer warehouses. Excellent efficiency, zero ozone depletion potential (ODP), zero global warming potential (GWP), and lower lifecycle cost at scale, with the engineering rigour ammonia demands.

Why ammonia for large facilities:

• High efficiency — outstanding thermodynamic properties make ammonia one of the most energy-efficient refrigerants for large cold storage
• Environmentally friendly — zero ODP, zero GWP, no F-gas regulatory burden
• Cost-effective at scale — higher initial cost is offset by lower long-term operating cost for warehouses, food plants, and industrial applications
• Long-term reliability — properly maintained, ammonia plants deliver decades of dependable service

Freon (HFC/HCFC) systems

Simpler operation and lower regulatory burden for medium-scale commercial, retail, pharma, and food-service applications. Right-sized HFC systems are robust, mature, and well-supported, with widely available spare parts and technician expertise across Pakistan.

Refrigerants we use: R134a (medium-temp cold rooms / chillers) · R404A and R507 (low-temp freezers) · R407C (chillers and cold storage) · R410A (high-pressure modern systems). R22 is supported on legacy plants but actively phased out per Montreal Protocol.

Ammonia system architectures

Three distinct ammonia configurations — we specify the right one for your load, layout, and safety profile.

1. Ammonia Direct Expansion (DX)

Liquid ammonia is metered directly into evaporator coils inside the cold room, where it boils and absorbs heat. Compact and straightforward — best where the cold rooms can accept ammonia in the evaporators (typical for industrial freezer warehouses without occupancy concerns).

Components: Compressor · Condenser · Expansion valve · Evaporator coils. Best for: Single-temperature freezer warehouses, ice plants, large distribution hubs.

2. Ammonia Pumped Circulation

A recirculation pump circulates liquid ammonia through evaporators at high flow rates. Only a portion evaporates (wet return); the remainder flows back to a low-pressure receiver for separation. Vapor returns to compressor; liquid is pumped back to evaporators.

Components: Compressor · Condenser · Low-pressure receiver (separator) · Recirculation pump · Evaporator coils. Advantages: Uniform cooling across very large spaces, efficient heat transfer in big-volume cold stores. Best for: Blast freezers, food processing plants, large distribution warehouses.

3. Ammonia–Glycol Indirect

Ammonia never enters cold rooms. Instead, it cools a secondary fluid (typically glycol) in a plate heat exchanger inside the central machine room. Chilled glycol is pumped to air coolers in the storage areas, absorbing heat from the rooms. The ammonia cycle stays confined to the machine room — minimising leak risk to occupied spaces.

Components: Compressor · Condenser · Plate heat exchanger · Glycol pumps · Glycol distribution lines · Air coolers (glycol side) inside cold rooms. Advantages: Enhanced safety (ammonia isolated from product zones), flexibility for multi-temperature zones, ideal where personnel and product safety are critical. Best for: Pharma, dairy, multi-zone facilities, sites with occupancy in adjacent areas.

Freon capacity ranges

We design and install Freon-based systems from 0.25 HP to 25 HP — covering everything from a single display cabinet to a multi-room industrial cold store.

• Small (¼–3 HP) — mini cold rooms, display cabinets, restaurant freezers, medical storage, floral shops
• Medium (3–10 HP) — small supermarkets, dairy storage, mid-sized cold rooms for fruits, vegetables, beverages
• Large (10–25 HP) — large cold stores, industrial freezers, multi-room storage, distribution centres

Single-unit or parallel rack configurations available depending on load profile and redundancy requirements.

Equipment categories

• Chillers — continuous process cooling for food, pharma, and plastics
• Blast freezers — rapid temperature reduction for meat, seafood, and bakery
• Plate freezers — uniform freezing of flat-packed fish and poultry
• Modular cold rooms — packaged refrigeration matched to envelopes
• Multi-temperature warehouses — coordinated multi-zone systems
• Pre-cooled distribution centres — engineered for fast loading

Designed for Pakistan

Every plant we deliver is sized for high-ambient operation (50°C condenser conditions where needed), specified for the actual voltage swings on your grid feed, and configured for your generator backup arrangement. Coastal projects use materials and condenser configurations resistant to salt-laden air.

Beyond hardware

We integrate temperature-controlled logistics planning, remote monitoring systems, hygiene-compliance engineering, and energy-efficient design across every project.