Our Products

Hollow Profile – Rectangular and Round

Radiant’s uses the most sophisticated techniques in fabrication of Hollow Profiles for the HVAC industry. Our hollow profiles are manufactured in lengths of 2 ft / 4 ft / 6 ft & 8 ft – which is another industry first. This unique innovation assists in:
  • Optimizing the quantity of transverse joints thereby reducing the overall cost of accessories.
  • Reduces TAT for assembly of hollow profiles which leads to faster project completion.
  • Reduces overheads
We follow the practice of fabricating hollow profiles in either open box sections or fully boxed up sections to:
  • Avoid segregation at site – hence avoiding wastage of time to find two L sections of a hollow profile.
  • Minimize site activity as only one longitudinal joint needs to be locked at site.
  • Reduce air leakage as the number of joints is less.
  • Ensure minimum transportation costs by way of optimum stacking.


We are the only company in India which manufactures all the different kinds of connectors under one roof. To reinstate, we have in house machines for all different flanges used in joining hollow profiles made for HVAC systems

Flanges which are manufactured using our in-house PLC operated machines are:
  • C&S cleats – used for smaller profile sizes upto 750 mm
  • Transverse Hollow profile Flange (TDF) or rolled on flange
  • Slip On Flange (T-35)
  • Angle Iron Frames

Unique advantages of the TDF flange:

  • This flange is formed with the same hollow profile material.
  • Enhanced reinforcement for better performance.
  • Groove for gasket, for better allocation and leak-proof sealing.
  • Manufacturing ability to form both sides of the flange simultaneously to avoid angular mismatch.
  • Can be used without any reinforcement for hollow profile sizes up to:
    1. IS – 655 – 1500 mm– 22g
    2. SMACNA – 1200mm – 24g

Benefits of Slip On flange

  • It is available in a wide range of thicknesses from 0.5 mm to 1.0 mm
  • In house forming facility for Slip- On flange ensures fabrication using a variety of material e.g. G.I.Grades from 120 to 375 GSM, Aluminum, Stainless Steel.
  • This flange is compatible with TDF – which assists in joining site to suite pieces with TDF flanges.
  • The flanges are fitted on L Sections and supplied pre-drilled to enhance site productivity and reduce worker’s fatigue.

Hollow Profile Support Systems –

  • Radiant Air Systems fabricates robust equipment in the form of support systems for easy handling and installation of hollow profiles at site.
    Our support systems comprises of a combination of Double "L" Bracket and Slotted Channel optimizes the overall cost with accessories like threaded Rods / nuts & washers / anchor fasteners / connectors.

Other Components –

Apart from hollow profiles, connecting devices and support systems, we also fabricate:
  • Air Mixing Boxes (Diffuser Box) with Round Collars
  • U & W channels for acoustic lining of hollow profile as well as AHU rooms.
  • Plenums & Return Air Baffles.