C channel
The general-purpose purlin and rafter. Turned-in lips add stiffness without weight, keeping module rows flat under wind load.
- Web
- 40–300 mm
- Flange
- 40–90 mm
- Thickness
- 0.7–3.0 mm
For solar EPCs, developers and mounting brands
C, Z, U and HAT profiles rolled for ground‑mount solar
UNIKLAET Engineering rolls, punches and cuts structural sections to your drawing at our own plant in Mahesana, Gujarat — then ships them with the base plates, clamps and fittings that complete the frame.
- Direct from our own plant
- Precut and prepunched to drawing
- Four coating systems
- IS 811 and EN 10162 tolerances
Send a drawing, a size list or the section reference you already buy. We will confirm feasibility, lead time and price.
40–300 mmWeb depth
0.7–3.0 mmMaterial thickness
12 mMaximum length
4Coating systems
Rolled and finished to
- IS 15961:2012
- IS 2062:1992
- IS 18513:2023
- IS 277:2018
- IS 4759
- IS 811
- EN 10162
- IS 875
Product range
Four profiles for every mounting condition
U – Profile
Parallel-flange channel section. Equal flanges on a flat web — ideal for cable management tracks, module rail end-caps and purlin support brackets.
C – Profile
Lipped channel with inward-turned lips for stiffness. Primary structural member in solar mounting tables and shed purlins; highest section modulus-to-weight ratio in the range.
Z – Profile
Anti-symmetric section with offset flanges — enables lap-joint nesting for continuous-span purlin runs. Preferred for sloped roof structures and solar array east-west rows where long-span continuity matters.
HAT – Profile
HAT-shaped section with outward-spreading flanges for wide bearing contact. Used as module rail substructure, secondary roof battens and cable tray covers in ground-mount solar plants.
Profiles
Three sections that carry most solar frames
Rolled from high-strength steel on automatic lines, cut to length and punched to your hole pattern before they leave the plant.
Z purlin
Flanges run opposite ways so sections nest and lap at the supports — fewer splices across long continuous runs.
- Web
- 40–300 mm
- Lip
- 10–25 mm
- Length
- Up to 12 m
U channel and slotted strut
Plain U works as a rafter and base member; slotted strut carries panel clamping and lets supports move after install.
- Strut sizes
- 21–81 × 41 mm
- Thickness
- 1.6–2.5 mm
- Slot centres
- 50 mm
Which section does which job
Profiles are specified by structural role, so the frame goes up as one matched system rather than four separately bought members.
Column
Lipped CHigh vertical compression and ground-anchoring stability.
Rafter
Deep lipped C, U channelStrong resistance to downward bending from the panel array.
Purlin
HAT, Z-purlin, strutFlat top for panel clamping and easy lapping over spans.
Bracing
Light C channelTriangulates the frame to prevent sway and counter wind-lift.
Applications
Where the profiles go to work
The same roll-formed C, Z, U and HAT sections carry the secondary framing of pre-engineered buildings and the tables of ground-mount solar plants.
Industrial steel structures
Cold-formed profiles offer the ideal weight-to-strength ratio for pre-engineered buildings — secondary structural members that span rafters and columns, carry cladding loads, and resist wind uplift without the cost of hot-rolled sections.
- Roof and wall purlins (C and Z, up to 12 m spans)
- Eave and ridge strut assemblies
- Girt and side rail cladding support
- Mezzanine floor joist framing
- Industrial racking, shelving, and conveyor support frames
Ground-mount solar module mounting structures
Profiles are the backbone of utility-scale and commercial solar mounting tables — from pile-driven posts to module clamp rails — designed to survive 25-year outdoor service life under Indian wind and seismic zones.
- Module mounting rails (longitudinal and cross members)
- Torque-tube and post-top table assemblies
- East-west bifacial row runners using nested Z-purlins
- DC cable management trays and conduit supports
- Inverter and combiner box plinths
What we do
Three ways we work with you
The same roll-forming lines serve solar developers, pre-engineered building fabricators and design teams who need a section made exactly to a drawing.
Solar Industries
Purlins, rafters, posts and the full fixing kit for ground-mount and rooftop solar, precut to your table drawing.
- Module tables and tracker support members
- Base plates, hangers and module clamps
- Coating chosen for the site environment
Roofing Industries
C and Z purlins, girts and eave members for pre-engineered buildings, warehouses and industrial sheds.
- Lapped and nested Z purlin runs
- Cleats, jointers and sag-rod holes punched in
- Lengths to 12 m, bundled by member mark
Engineering Services
Section data, profile development and hole-pattern work, so what you draw is what comes off the line.
- Physical properties and section data on request
- New profile and roll-tooling development
- Sample runs before a production batch
Why the section matters
Steel that arrives ready to bolt together
India is working towards 500 GW of renewable capacity by 2030, and ground-mounted solar carries much of that load. Demand for structures that are both affordable and technically sound has never been higher.
EPC teams already know the trade-off. A ground-mount design done right runs for decades on almost no upkeep. Done wrong, it shows up as misaligned modules, corrosion at the fasteners, wind-load failures and rework that quietly eats the margin on the job.
Every section is roll-formed from certified coil to Indian Standard grades, then finished to the dimensional tolerances set out in IS 811 and EN 10162. Profiles, brackets, clamps and fasteners are specified as one matched system, so what leaves our line fits together on site: straight, square, correctly coated and drilled to your drawing.
- No site fabrication. Holes, slots and lengths arrive as drawn.
- Coating matched to the site. Galvalume, hot-dip galvanized, zinc-aluminium-magnesium or pre-galvanized.
- Supply you can schedule around. Repeat batches roll to the same tolerance.
Column, rafter, purlin and bracing, specified as one matched system.
Structural channels
C, Z, U and HAT sections
The backbone of the array. Rolled from high-strength steel on precision automatic roll-forming lines, precut and ready to assemble — an economical choice for utility-scale and community solar.
Lipped C channel
The general-purpose section for purlins and rafters. Turned-in lips add stiffness without extra weight, which keeps module rows flat under wind load. Web 40–300 mm, flange 40–90 mm, lip 10–25 mm.
Lipped Z channel
Flanges run in opposite directions, so sections nest and lap at the supports. Useful where continuous runs across several bays reduce the number of splices. Same web, flange and lip ranges as the C.
Plain U channel
An unlipped section for bracing, base members and secondary framing where the extra stiffness of a lip is not needed and cost per metre matters more.
HAT profile
A trapezoidal crown with 45° and 75° bends and flat flanges either side, so it seats directly on a beam and takes fasteners through the flange. Height and width rolled to your requirement.
C sections leaving the roll-forming line, cut to length and ready to bundle.
What arrives on site
Sections are rolled, punched and cut before they leave the plant, then bundled by member type so the crew can lay out a table without sorting steel.
- Cut to length up to 12 000 mm, tolerance ±1 to ±4 mm by length band.
- Punched 12 or 14 mm holes and 12 × 24 or 14 × 28 mm slots on your centres.
- Held straight within 2 mm per metre, twist within 1° per metre.
- Coated in the system chosen for the site, not the one that was cheapest that week.
Size range and tolerance
| Feature | Range | Tolerance | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Web | 40 to 300 | ≤ 100: ±0.75≤ 200: ±1 · over 200: ±1.5 | ||||||||||
| Flange | 40 to 90 | ≤ 100: ±0.75 | ||||||||||
| Lip | 10 to 25 | ≤ 40: ±0.75 | ||||||||||
| Thickness | 0.7 to 3.0 | ±8% | ||||||||||
| Length | To requirement, maximum 12 000 |
| ||||||||||
| Angle | 90° |
| ||||||||||
| Hole diameter | 12, 14 | ±0.5 | ||||||||||
| Hole centres | To requirement | ±1 | ||||||||||
| Slot | 12 × 24, 14 × 28 | ±1 | ||||||||||
| Slot centres | To requirement | ±1 | ||||||||||
| Straightness | — | 2 mm per metre length | ||||||||||
| Twist | — | 1° per metre length | ||||||||||
| Concavity, convexity | — | 0.8% of h, minimum 0.5 |
Physical properties and engineering data are available on request.
Strut systems
Slotted strut channel
A continuous slot down the full length and inturned edges, so conduits, cable trays, HVAC runs and module supports can be positioned anywhere along the member and moved later without drilling.
Rolled from coated coil and cut to exact dimensions, the strut works two ways on a solar frame: as a purlin it gives a flat top for panel clamping and laps easily over spans, and as framing it carries conduits, trays and secondary supports that may need to move later.
21 × 41Shallow
41 × 41Standard
61 × 41Deep
81 × 41Extra deep
Four standard sizes, drawn to relative scale. Dimensions in mm.
- Thickness 1.6, 2.0 and 2.5 mm, tolerance ±8%.
- Lengths to requirement, up to 6 000 mm.
- Holes and slots 12 or 14 mm dia, 12 × 24 or 14 × 28 mm slots, 50 mm centres.
- Section tolerance ±0.75 mm, angle 90° ±1°, straightness 2 mm per metre, to IS 811 and EN 10162.
Slotted strut, punched at 50 mm centres along the full length.
Accessories
Everything that joins the structure together
Base plates, jointers, hangers, module clamps and strut fittings — supplied with the channel so the bill of materials arrives from one place.
Channel mounting accessories
C lip base plate / custom base plate
Transfers post load into the foundation. The upstand is formed to match your C channel or strut so the post drops straight in.
Jointer
Splices two channel runs in line. Slotted holes take up cumulative tolerance across a long row without field cutting.
Degree hanger
Sets and holds the module tilt angle where the rafter meets the post. Formed to the angle specified for your site.
Universal mid and end clamps
Holds the module frame to the purlin. One clamp body covers the common frame depths, so a single part number works across module suppliers.
Nuts and washers
Carbon-steel fasteners are finished zinc plated (IS 1367-11), zinc flake (IS 10683) or hot-dip galvanized (IS 1367-13). Mild-steel parts follow IS 1573, IS 15488 and IS 4759.
Brackets and connectors
Pressed steel fittings that turn strut channel into a frame. Mild steel to IS 2062 E250 / E350, 6 mm plate, holes for M6 to M16 on a 50 mm pitch, finished zinc plated to IS 1573, zinc flake to IS 15488 or hot-dip galvanized to IS 4759.
Post bases and multi-plane connectors
Material specification
Four coated-steel families, matched to the site
Coastal humidity, industrial air and inland dust each wear steel differently. Tell us where the plant is going and we will roll it in the system that suits it.
| Standard | Grade | Coating class | Thickness |
|---|---|---|---|
| Hot-dip aluminium-zinc alloy coated — Galvalume | |||
| IS 15961:2012 | YS 350, YS 550 | AZ 150 | 0.7 – 3.0 |
| Hot-dip galvanized steel | |||
| IS 2062:1992 Hot rolled medium structural steel | E250, E350 | IS 4759 — 460 GSM (over 60 µ), 600 GSM (over 80 µ) | 1.6, 2.0, 2.5, 3.0 |
| Hot-dip zinc-aluminium-magnesium alloy coated | |||
| IS 18513:2023 | IZMC300S, IZMC350S | ZM 120, ZM 150 | 1.6, 2.0, 2.5, 3.0 |
| Galvanized steel | |||
| IS 277:2018 | YS 250, YS 350 | Z 80, Z 120, Z 275 | 1.6, 2.0, 2.5, 3.0 |
Slotted strut channel is offered in the same four families, in 1.6, 2.0 and 2.5 mm. Every section is finished to the dimensional tolerances of IS 811 and EN 10162. Ask us for physical properties and engineering data for any combination.
How we work
Built so your crew never waits on steel
Rolled to your drawing
Profile, hole pattern, slot centres and length come off the line as specified. Nothing is cut or drilled on site.
Automatic roll-forming
Precision lines hold EN 10162 tolerances batch after batch, so the tenth truckload assembles like the first.
Coating for the environment
Galvalume, hot-dip galvanized, zinc-aluminium-magnesium or pre-galvanized, selected for the site rather than for the quote.
Complete bill of materials
Channel, base plates, jointers, hangers, clamps and fasteners ship together instead of arriving from four vendors.
Predictable supply
Our own manufacturing unit in Mahesana means schedules you can plan a construction programme around.
Lighter to install
Bolted assembly with slotted adjustment cuts crew hours and removes welding and touch-up from the site scope.
Our process
From enquiry to delivery
Every order follows a structured five-stage workflow, ensuring dimensional accuracy, certified material traceability and on-time dispatch for project-critical schedules.
-
01
Enquiry
Submit profile type, quantity and project load requirements via the quote form or direct email.
-
02
Specification review
Engineering verification of dimensional tolerances, steel grade and coating specifications against standards.
-
03
Roll forming
Profiles are cold-formed from pre-galvanized coil on CNC lines to a ±0.5 mm tolerance.
-
04
Certification
Issuing mill test certificates, coating weight reports and dimensional inspection records per batch.
-
05
Dispatch
Dispatching bundled and labelled profiles via freight or container with full documentation.
About UNIKLAET
Your partner in seamless solar builds
Solar EPC projects run into the same three problems again and again: delayed deliveries, inconsistent supply and structures that do not go together the way the drawing said they would. UNIKLAET Engineering exists to remove those obstacles.
We manufacture roll-formed steel profiles for solar module mounting structures from a plant at Jhulasan in Mahesana district, Gujarat. Every section comes off the line from certified coil, precision-manufactured to combine structural reliability, faster installation and dependable supply.
Working with us should mean dependable supply, simpler logistics and solar structures that last — so your attention stays on powering the future rather than on chasing steel.
A typical module table: purlins, rafters and posts assembled entirely from precut roll-formed sections.
Our mission
To empower EPC teams across India by delivering precision-manufactured roll-formed profiles that combine structural reliability, faster installation and dependable supply — so every project stands strong for decades, not just years.
Our vision
To be the structural backbone of India's solar future — giving EPC teams dependable, precision-engineered profiles that turn ambitious renewable energy goals into lasting reality.
Common questions
Before you send the drawing
Which profiles and sizes do you roll?
Lipped C, lipped Z, plain U and HAT sections with webs from 40 to 300 mm, flanges from 40 to 90 mm and lips from 10 to 25 mm, in thicknesses of 0.7 to 3.0 mm and lengths up to 12 metres. Slotted strut channel is rolled in 21 × 41, 41 × 41, 61 × 41 and 81 × 41 mm, in 1.6, 2.0 and 2.5 mm, up to 6 metres.
Which coated-steel family should I choose for my site?
We supply Galvalume to IS 15961, hot-dip galvanized to IS 2062 with IS 4759 coating classes, zinc-aluminium-magnesium to IS 18513 and pre-galvanized to IS 277. Coastal and high-humidity sites usually call for a heavier zinc or a ZM coating, while dry inland sites are commonly served well by Galvalume. Send us the location and design life and we will recommend a system.
What tolerances do you hold?
Sections are produced to the dimensional tolerances of IS 811 and EN 10162. In practice that means ±0.75 mm on webs up to 100 mm, ±8% on thickness, ±1 mm on hole and slot centres, straightness within 2 mm per metre and twist within 1° per metre. Full tolerance tables are published on this page.
Can you punch holes and slots to our pattern?
Yes. Hole diameters of 12 and 14 mm and slots of 12 × 24 and 14 × 28 mm are standard, and centres are set to your drawing. Sections arrive precut and prepunched, so there is no fabrication on site.
Do you supply the fasteners and fittings as well?
Yes. Base plates, jointers, degree hangers, universal mid and end clamps to IS 875, spring and hex nuts, washers, and the full range of straight, 90-degree, angular, Z and U fittings plus post bases and two, three, four and five-way connectors — all supplied alongside the channel and finished to match.
Where do you manufacture and how far do you deliver?
Our plant is at Airawat Industrial Park, Jhulasan, Mahesana 382705, Gujarat, with the registered office in Gota, Ahmedabad. We serve EPC contractors and developers across India. Talk to us about quantities and delivery schedule for your project.
Get in touch
Send us the drawing. We will send the steel.
Send the section reference, size list or drawing you already work from. We will check feasibility, confirm lead time and come back with a price. Nothing needs to be finalised — share what you have.
Registered office
509, Skywalk The ElementGodrej Garden City Road, Near Ganesh Glory
Gota, Ahmedabad 382481
Gujarat, India
Manufacturing unit
Plot 25, Airawat Industrial ParkRajpur-Julasan Road
Jhulasan, Mahesana 382705
Gujarat, India