Coolant radiators

Bar-and-Plate Aluminium Radiators for Water and Water-Glycol Cooling

Name: Bar-and-plate aluminium radiator
Brand: TESIO

Tesio India manufactures bar-and-plate aluminium radiators at its Varanasi plant for water-only and water-glycol coolant circuits. Each radiator is sized from the heat load, coolant chemistry and glycol ratio, coolant flow, inlet and outlet temperatures, ambient conditions, available airflow, allowable pressure drop on both sides, and the installation envelope and mountings.

Consult Our Thermal Engineers

Bar-and-plate construction — engineering illustration — Engineering illustration

Water-only and water-glycol circuits

Agree the coolant before the core

Radiators are offered for water-only circuits and for water-glycol circuits. State the coolant specification, inhibitor package and glycol ratio, together with the minimum ambient and storage temperatures. Coolant treatment, material compatibility and the operating environment are agreed for each project; water-only suitability for freezing or corrosive conditions is never assumed.

Bare cores, complete radiators and fan-equipped assemblies

Choose the supply form

Supply can be a bare radiator core for integration by the OEM, a complete radiator with specified headers, connections and mountings, or a fan-equipped assembly with an agreed fan, shroud, frame and interfaces. A bare core does not include a fan. Larger integrated modules are covered on the complete cooling units page.

Construction selected per design

Evaluate the site, not a catalogue

Alloy, core depth, fin type and pitch, header design and connection interfaces are selected for each design. Site dust, fouling and cleanability, vibration and corrosion exposure are treated as evaluation criteria for the specific project, not as blanket validated ratings. The existing vacuum-brazing capability is described separately; the joining route is confirmed in the approved design.

Manufactured in India at the Varanasi plant

Submit a radiator brief

Radiators are manufactured at the Tesio India plant in Varanasi, with thermal engineering support from the Chennai R&D lab. Send the heat load, coolant data, flow, temperatures, airflow and pressure-drop budget, envelope drawing, mounting points, annual volume and acceptance criteria. Dedicated radiator images and the datasheet will follow; performance is design-specific.

Engineering selection table
Selection item	What to define
Construction	Aluminium bar-and-plate core; alloy, fin and header defined per design
Fluid choice	Water only or water-glycol; treatment and glycol ratio agreed per project
Supply scope	Bare core, complete radiator or fan-equipped assembly
Manufacturing site	Tesio India plant, Varanasi, Uttar Pradesh
Thermal input	Heat load, inlet and outlet temperatures, ambient range
Flow and airflow budget	Coolant flow, available airflow and allowable pressure drop on each side
Pressure and test limits	Working and test pressures specified for the project; no catalogue rating
Installation interfaces	Envelope, mountings, connections, fan and shroud interfaces as agreed

Prepare your thermal brief

Optional duty inputs for engineering review — not a sizing calculation or performance guarantee.

Application sectors

Rail & Traction
Locomotive and multiple-unit coolant loops and engine jacket-water circuits.
Wind Energy
Auxiliary coolant loops for generators and power converters.
Industrial Air Compressors
Auxiliary coolant loops in water-cooled compressor packages, not compressed-air aftercoolers.
Construction, Mining & Off-Highway
Engine and closed coolant circuits on construction, mining and off-highway machines.
Power Electronics, Data Centres & Gensets
Genset jacket water and secondary liquid-loop heat rejection; not the cold plates or CDUs themselves.
Agricultural Machinery
Engine and machinery coolant circuits on tractors and harvesters.
Cryogenics, Air Separation, LNG & Hydrogen
Auxiliary compressor and electrolyser coolant loops, not cryogenic process exchangers.
Aerospace & Defence
Project-qualified ground, vehicle and electronics coolant loops; no AS9100 or flight approval implied.
Marine & Naval
Closed freshwater coolant-to-air auxiliary circuits with an airflow assessment, not direct seawater coolers.
Electric Vehicles & Heavy Buses
Battery and powertrain coolant-loop heat rejection on electric and heavy buses, not battery cold plates.
Medical, Lasers & Scientific
Coolant loops for lasers, scientific instruments and auxiliary chillers; no medical-device approval implied.

Eligibility and qualification remain project-specific for each sector.

Frequently asked questions

Can the radiator run on plain water or does it need glycol?

Both are offered. Water-only and water-glycol circuits are supported, with coolant treatment, glycol ratio and material compatibility agreed for each project and its operating environment.

Which supply forms are available?

Bare radiator cores, complete radiators with specified headers, connections and mountings, and fan-equipped assemblies with an agreed fan, shroud, frame and interfaces.

Which applications can these radiators serve?

Coolant loops in all eleven Tesio India application sectors can be evaluated. Eligibility and qualification remain project-specific for each sector.

What information is needed to size a radiator?

Heat load, coolant chemistry and glycol ratio, flow, inlet and outlet temperatures, ambient conditions, available airflow, allowable pressure drop, envelope and mountings.

Where are the radiators manufactured?

At the Tesio India plant in Varanasi, Uttar Pradesh, with R&D support from the Chennai lab. Chennai is not a manufacturing site.

Datasheet pending. Published data is issued per approved design. Compare all product lines.