Home > Products > Metal Roofing > Uni-Purlin & Metal Framing System
Uni-Purlin & Metal Framing System
The Channel Styles and Combinations You Need
INTRODUCTION
FEATURING THE UNIQUE UNI-PURLIN CONNECTION
- NO WELDING
- NO DRILLING
- 100% ADJUSTABLE
- 100% REUSABLE
SMALL C-PURLIN
Hex-head bolt threads easily into a spring nut, connecting fitting to channel in quick one-hand operation.
Several channel sizes and hundreds of fittings give you engineered solutions to a virtually limitless variety of projects.
Nut teeth create a vice like grip,
tying sides together in a strong “box” configuration, when the nut is tightened against the in turned channel edges.
Spring allows precision placement anywhere along channel length then holds the nut in position while connection is completed.
Insert the spring nut anywhere along the continious slotted channel. Rounded nut ends permit easy insertion.
Addtional channel sections can now be bolted to the fitting already in place by following procedure described in step 1-3.
Insert bolt through fitting and into the spring nut.
Addtional channel sections can now be bolted to the fitting already in place by following procedure described in step 1-3.
Tightening with a spanner locks the serrated teeth of the nut into the in-turned edges of the channel, forming a strong, vise-like connection.
THE CHANNEL STYLES YOU WANT AND THE COMBINATIONS YOU NEED
MATERIALS & FINISHES
MATERIALS
UNI-PURLIN
Uni-Purlin channels are steel from 1.6mm to 2.5mm, they are also available in Mild Steel, Pre-Galvanized. (G.I)
MILD STEEL CHANNELS
Mild Steel Channels are rolled using material formed by: JIS G3141 SPCC-SD equivalent to BS DIN EN 10130 and the minimum yield stress for our channel system is Ys=260N/mm2.
PRE-GALVANIZED CHANNELS
Pre-Galvanized Channels are rolled using material formed by: JIS G3302 equivalent to BS EN 10326 and the minimum yield stress for our channel system is Ys=260N/mm2.
Uni-Purlin fitting Comply with BS1449Part1:1983 or BS4360:1927 and are manufactured from hot-rolled, picked and oiled steel plates, strip or coil. They have a minimum yield stress of 170N/mm2 as specified in BS6946:1988.
Comply All fittings are manufactured from 6mm thick material unless specified otherwise. Uni-Purlin fitting can also be obtained in stainless steel.
Uni-Purlin Channel Nuts are made from high quality steel bar.
FINISHES
Hot-Dip Galvanized
Hot-dip galvanizing is a process where completely manufactured or roll-formed steel is chemically cleaned of all contaminants and then dipped in molten zinc. This will allow a coating consisting of iron/zinc-alloys which are usually over-coated with a layer of relatively pure zinc.
All hot-dip galvanizing is applied in accordance with ASTM A123:1989/BS EN ISO 1461:1999(E) which supersedes BS729:1971. The zinc coating thickness varies from 45μm (up to 2mm thick material for bolts and nuts) to 55μm (for at least 5mm thick material).
Pre-Galvanized (G.I)
Sheet metal (steel strip) is hot-dip galvanized in a continuous process which yields an even zinc coated sheet with a bright smooth metallic finish. Materials such as stell is galvanized prior to the manufacturing (roll-forming or press operations) of channels or fittings. All “pre-galvanized” steel used is in accordance with BS2989:1982 and usually grade Z275. Pre-Galvanized Hot Dipped Zinc Coated Steel JIS G3302.
Special Coating
Special Coating are also available upon request for all the channels and fittings: Epoxy Coated, Polyester Powder Coated and Thermoplastic Coated.
Plain (Mill Finish) Steel (Black)
Uni-Purlin channels and fittings are untreated and retain an oiled surface from the rolling or pressing process. Alternative steel grades and surface finishes are available upon request, but may be subject to minimum order quantities. Hot rolled steel P&O, JIS G3131 SPHC.
A WORLD OF SUPPORT FOR KEEPING PRODUCTION EFFICIENCY
TECHNICAL BRIEF
PRE-GALVANIZED STEEL
Pre-Galvanized steel (JIS G3302 SGHC/SGCC or BS EN 10142)
Pre-Galvanized steel is produced by running the steel sheet though a bath of molten zinc in a continuous process. The thickness of the zinc coating is less than that of hot dip galvanized products. This zinc coating is also interrupted at edges where the material is cut or punched. Some zinc is pushed over the cut edges during the cutting process to offer some protection. Products made from pre-galvanized materials are suitable for indoor use.
ELECTRO GALVANIZED STEEL (EG)
Electro galvanized steel (JIS G3313 SECC)
This is process whereby the steel is passed continuously through a series of plating cells where zinc is deposited onto the steel surface through the electrolysis process. The protective zinc coat thus obtained is relatively thinner than the material obtained by hot dip galvanizing. The finished products are usually recommended for indoor application in dry areas.
EPOXY POWDER COATED (EPC)
Powder coating is a process whereby the powdered resin and the steel product are electro are statically charged with opposing potential. The powder is sprayed onto the product and an even coat is formed. The coated product is then passed through an oven for baking to produce a glossy and hard finish. This coat can provide corrosion resistance against atmospheric moisture but not against more aggressive environment. It is recommended for indoor applications.
Powder coating can be applied to products with the following finish.
Mild steel mill finish
Hot dip galvanized finish
Pre-galvanized steel finish
Electro galvanized steel finish
HOT DIP GALVANIZED AFTER FABRICATION (HDG)
The most common selection for outdoor application is hot dip galvanized. After the cutting, bending and welding operation, the completed product goes through a series of treatment to remove grease and rust before being immersed completely into a bath of molten zinc. This complete immersion allows the zinc to bond onto every exposed surface of the product thereby affording exceptional protection, Defending on the environment, protection , Depending on the environment, protection can last for many years.
ZINC THICKNESS MEASUREMENT AFTER HOT DIP GALVANIZED
UNI-PURLIN SERIES
UP 41x41 Weight 2.7kg per metre
UP 41x82 Weight: 5.5kg per metre
UP 82x82 Weight: 11kg per metre
ELEMENT OF THE SECTION
UP 41X41 CHANNEL
BEAM LOADING DATA UP 41X41
COLUMN LOADING DATA UP 41X41
UP 41X82 COMBINATION CHANNEL
BEAM LOADING DATA UP 41X82
COLUMN LOADING DATA UP 41X82
UP 82X82 COMBINATION CHANNEL
BEAM LOADING DATA UP 82X82
COLUMN LOADING DATA UP 82X82
UP 20X41 SERIES
UP 20x41 Weight: 1.97kg per metre
UP 20x41 Double Weight: 3.91kg per metre
ELEMENT OF THE SECTION
UP 20X41 COMBINATION CHANNEL
BEAM LOADING DATA UP 20X41
COLUMN LOADING DATA UP 20X41
UP 20X41 COMBINATION CHANNEL
BEAM LOADING DATA UP 20X41 DOUBLE
COLUMN LOADING DATA UP 20X41 DOUBLE
UNI-PURLIN PIERCED CHANNEL
UP 41x41 with hole Weight: 2.5kg per metre
UP 20x41 with hole Weight: 1.65kg per metre
ELEMENT OF THE SECTION
UP 41X41 PIERCED CHANNEL
BEAM LOADING DATA UP 41X41 WITH HOLE
COLUMN LOADING DATA UP 41X41 WITH HOLE
UP 20X41 PIERCED CHANNEL
BEAM LOADING DATA UP 20X41 WITH HOLE
COLUMN LOADING DATA UP 20X41 WITH HOLE
CLOSURE STRIPS
UP 1184PVC
TYPICAL CHANNEL ACCESSORIES
UP 2335, UP 2540
DESIGN LOAD DATA
1. Both ends of beams supported
2. Loads are for: UP 41×41 2.5mm thick channels
M12 hardened spring nuts
3. Safety factor = 2 based on ultimate strength of connection
FLAT PLATE FITTINGS
UP 1064
UP 1065 Weight: 157g
UP 1036 Weight: 250g
UP 1066 Weight: 243g
UP 1031 Weight: 339g
UP 1067 Weight: 330g
UP 1028 Weight: 425g
ANGULAR FITTINGS
UP 1068 Weight: 159g
UP 1326 Weight: 1242g
UP 1749 Weight: 194g
UP 1026 Weight: 157g
UP 1325 Weight: 1327g
UP 1747 Weight: 263g
UP 110
UP 59
UP 1359 Weight: 458g
UP 689
UP 1713 Weight: 384g
UP 1033 Weight: 342g
UP 1331 Weight: 432g
UP 1186-135° Weight: 256g
UP 1035 Weight: 342g
UP 1332 Weight: 432g
UP 1546-45° Weight: 246g
UP 1034 Weight: 342g
"U" SHAPE FITTINGS
UP 1184PVC
TYPICAL CHANNEL ACCESSORIES
UP 2335, UP 2540
DESIGN LOAD DATA
1. Both ends of beams supported
2. Loads are for: UP 41×41 2.5mm thick channels
M12 hardened spring nuts
3. Safety factor = 2 based on ultimate strength of connection
ALL PRODUCTS
More Information
Please feel free to drop us a line and we will get back to you as soon as possible.
