What the 50kW hire chiller does on site
A 50kW hire chiller is a temporary cooling unit sized for medium to larger process loads where temperature stability matters. It is commonly used to hold line temperatures steady when production ramps up, when a permanent chiller is down for repairs, or when a new process is being brought online.
This unit suits laser cooling, mould temperature control, hydraulic oil cooling and other process lines that need dependable chilled water. It is a sensible option for factories that cannot afford warm starts, reject parts, or unplanned downtime during load-shedding and maintenance periods.
For sites in Gauteng, coastal regions and inland plants alike, the value is simple: keep temperatures under control while your own equipment is serviced, upgraded or replaced. The unit is delivered as a practical hire machine, not a long lead custom build, so it can be put to work quickly. Our team will assess the duty, water quality and available power before supply so the setup matches the load. A quick site check up front saves trouble later.
Typical sizes, configurations and cooling duty
Although the headline rating is 50kW, the final setup depends on your process temperature, return water temperature, ambient conditions and whether the load is constant or cyclical. The same unit can behave very differently on a laser line in a cool indoor plant compared with a moulding operation in a hot workshop.
Common hire chiller options and add-ons include:
- Air-cooled unit for plants with water-saving needs or no cooling tower on site
- Remote setpoint control for tighter temperature management on sensitive equipment
- Buffer tank or extra water volume to stabilise short cycling
- Flexible hoses and isolation valves for faster connection and removal
- Strainers and basic filtration where process water is not clean
As a guide, 50kW is often suitable for mid-sized process support, but the true match depends on the application and how hard the chiller has to work over a full shift. In hot weather or where doors stay open, available capacity can drop, so we allow margin into the selection. That is especially important at sites that run 24/7 or have high heat rejection from ovens, compressors or moulding machines nearby.
Where a 50kW hire unit suits best
This size is a strong fit for factories that need temporary cooling for a few weeks, a few months, or longer while permanent equipment is repaired or replaced. It is also used during commissioning when a new line must be proven before the final cooling plant is in place.
Typical applications include:
- Laser machines that require stable chilled water to protect optics and maintain cut quality
- Mould cooling where temperature drift affects cycle time and part finish
- Process lines in food, plastics, packaging and general manufacturing
- Temporary plant support during summer peaks or when a main chiller is overloaded
- Backup support after breakdowns, leaks or compressor failures
For coastal sites in Durban or Cape Town, we also look at corrosion risk, humidity and airflow around the condenser section. Inland plants around Johannesburg, Pretoria and Rustenburg often need more attention to dust, water treatment and power stability. In all cases, the hire unit must suit the actual site conditions, not just the nameplate rating.
Installation, power supply and site connections
Our installation approach is practical and organised. We confirm the connection points, water line size, available space, lifting access and electrical supply before the unit arrives. On larger plants, a simple route plan helps avoid delays when the chiller is delivered and positioned.
Power requirements depend on the exact machine, but a 50kW hire chiller normally needs a suitable three-phase supply and correct protective devices. You should also allow for pump load and start-up current. If the site has generator backup or is exposed to load-shedding, that must be checked before installation so the chiller does not trip out under pressure.
We also look at the water side. Clean pipework, correct flow rate and proper hose sizing are important. If existing pipework is damaged or undersized, a temporary retrofit may be needed. Where the plant water is dirty, an additional strainer or treatment check can protect the hired machine and the process equipment it serves.
Care, servicing and what keeps the hire running well
A hire chiller performs best when it is monitored properly from day one. Even a temporary unit needs regular checks because poor water quality, blocked strainers or low flow can cause nuisance trips and damage the system.
Our service team supports the unit during the hire period and can assist with routine checks, fault finding and any adjustment needed on site. Good care usually means fewer callouts and steadier temperatures, especially on plants running long shifts.
- Check inlet and outlet temperatures each shift
- Confirm flow is steady and strainers are clear
- Look for leaks, vibration or abnormal noise
- Inspect electrical connections after power interruptions
- Keep the area around the chiller clear for airflow and access
Where sites have ageing pumps or contaminated water, we may recommend pump replacement, a water treatment check, or temporary filtration. A small issue can become a bigger one fast if the chiller is asked to carry poor conditions for weeks on end.
What to check before you order a 50kW hire chiller
The more accurate your request, the quicker we can match the right unit and accessories. Before ordering, it helps to confirm the process type, temperature target, duty hours and the physical space available for the chiller. If you already have a drawing or old nameplate details, that makes the selection easier.
Please have the following details ready when you use the enquiry form on our contact page:
- Application, such as laser cooling, mould cooling or process line support
- Desired water temperature and allowable tolerance
- Flow rate, pipe size and any existing pump details
- Power supply available on site, including generator or backup supply
- Indoor or outdoor placement, plus access for delivery and lifting
- Expected hire period and whether breakdown support is needed as well
If the plant is in a busy industrial area like Alrode, Germiston or Boksburg, we can plan delivery to suit site rules and access windows. For longer hires, we can also discuss preventative maintenance so the unit keeps running cleanly over the full period.
Key facts
| Cooling capacity | 50kW nominal hire unit |
|---|---|
| Application | Lasers, moulds and process lines |
| Power supply | Three-phase site supply, subject to final model |
| Cooling type | Industrial water chiller, air-cooled hire option |
| Use period | Short-term or extended temporary hire |
| Service area | Alberton and major industrial centres across South Africa |
