Ganesh Multitech EngineeringGANESH MULTITECHENGINEERING PVT. LTD.

Ganesh engineering library

Sheet metal, explained by the people who make it

377 guides on stamping, laser cutting, bending, welding, coating and the parts we build for lift, power, data centre, railway and farm equipment. Every article is reviewed by the engineering team before it is published.

377
published guides
14
topic hubs
3 Nov 2026
last technical review

Browse by topic

Nine clusters, each mapped to a capability or product page.

32Stamping, presses and press toolsPressed, punched and deep drawn sheet metal parts, the tooling that makes them, and the DFM rules that decide whether a part suits a press at all.29Laser cutting and sheet metal fabricationFibre laser cutting, nesting, edge quality, tolerance and the cost drivers behind a cut part, including long panels cut on the 40 ft × 16 ft bed.38Bending, welding and finished assembliesPress brake bending, bend allowance, fixtures, robotic MIG welding, distortion control and the tolerances a finished welded assembly can actually hold.28Surface treatment and powder coatingSeven-tank pretreatment, phosphating, shot blasting, powder and wet paint selection, film thickness and the failure modes that show up two monsoons later.22Elevator and lift componentsCounterweight frames, car frames, slings, guide rail brackets, door panels and controller enclosures made to lift OEM drawings.24Genset, canopy and acoustic enclosuresDG set canopies, acoustic panels, louvres, base frames, skid bases and control panel enclosures, engineered for weather, access and noise.28Data centre racks and electrical enclosures19-inch rack frames, mounting rails, perforated doors, blanking panels, PDU brackets and the electrical enclosures around them.16Tractor, forklift and material handlingTractor panels and brackets, forklift overhead guards, counterweight covers, mast parts and material handling components built for vibration and abuse.16Railway, furniture and infrastructureRailway coach panels, underframe brackets, fittings, metal furniture frames, shelving and signage, where standards and traceability carry as much weight as the part.38Materials and gradesGrade selection for CRCA, stainless, aluminium, brass and copper: formability, thickness, corrosion and what the mill certificate actually guarantees.30Standards and complianceWhich standard applies, what it actually covers, and the evidence a buyer should ask for: ISO, IEC, EN, RDSO and material certification.44Design and CADDesign rules, CAD hand-off, bend allowances, tolerance stacks and the drawing notes that decide whether a part is made right first time.4Applications and casesApplication-led problems from lift shafts, genset sites, data halls, railway coaches, farms and warehouses, and how the part is designed around them.28Plant, quality and sustainabilityHow the plants run: quality systems, inspection, calibration, pretreatment chemistry, effluent, maintenance, energy and scrap.

All guides, page 37

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12 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-RAI-842COACH INTERIOR PANEL · RDSOFIXING CENTRES FROM VEHICLE DATUMPANEL SECTIONPANEL SECTION · FINISHMILL CERT · BATCH TRACEPANEL LENGTHHEIGHTWINDOW CUTFIXINGFILM BUILDEVIDENCEmill certsINSPECTIONin-processFINISHpowder / brushPROCESS ROUTECUTFORMWELDFINISHTRACEPART / PROCESSRAILWAY FURNITURE INFRASTRUCTUREMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Railway and infrastructure

Equipment enclosure manufacturing: route, fixturing, inspection

How an equipment enclosure is manufactured in 1.6–3.0 mm CRCA: gauge rules, bend deductions, weld sequence, coating and the inspection points that stop rework.

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11 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-STA-984STATION 1 · PIERCESTATION 2 · FORMDEVELOPED BLANK · 2.0 mm CRCADIE SECTIONDIE SECTION · PUNCH / DIE CLEARANCEBLANK LENGTHSTRIP WIDTHPROGRESSIVE STATIONSPILOT HOLESCLEARANCE 5–8% tPRESS RANGE20–300 TPUNCHING250 TTOOLINGin-housePROCESS ROUTECOILBLANKPIERCEFORMINSPECTPART / PROCESSSTAMPING PRESSESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Stamping

Coil fed vs blank fed stamping: which feed fits

Coil fed stamping against blank feeding: material yield worked per part, coil change time, volume crossover and the parts that cannot run from strip.

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13 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-GEN-467ACOUSTIC CANOPY · DG SETSKID BASE · LIFTING POINTSINTAKEEXHAUSTPANEL SECTIONPANEL SECTION · LININGFREE AREA SET BY LOUVRECANOPY LENGTHHEIGHTLOUVRE BANKACCESS DOORLININGBASE FRAMEwelded skidLOUVREfree area calc.COATING7-tank + powderPROCESS ROUTECUTFORMWELDPRETREATCOATPART / PROCESSGENSET CANOPY ENCLOSURESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Genset and canopies

Genset acoustic enclosure design guide: tolerances and DFM

DFM rules for a genset acoustic enclosure: panel gauges, louvre free area, door seals, bend radii, realistic tolerances and the leaks that cost 10 dB(A).

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9 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-BEN-661FLAT PATTERN · BA COMPENSATEDR = 2t75°BEND SECTIONNEUTRAL AXIS · K-FACTORK = 0.3–0.5 BY R/tFLAT LENGTHFLANGEBEND LINEK-FACTORSPRINGBACKBRAKE200 T / 4,450 mm5-AXISDelem controlTHICKNESSto 10 mmPROCESS ROUTECUTDEBURRBENDCHECKCOATPART / PROCESSBENDING WELDING ASSEMBLIESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Bending and welding

STEP files for sheet metal bend review

STEP files for sheet metal bend review: what the model carries, what it does not, and the checks that catch an unbendable part before the tool is set.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-PLA-797RFQ PACKCONTAINER · FOB → DAPINSPECTIONLANDED COSTFOBgoods at portCIF+ freight + insuranceDUTYon CIF valueDAPlanded at siteLANDED COSTSUPPLY CHAINLEAD TIMEDRAWING PACKSHIPMENTDUTY ON CIFRFQ FIELDS9DOCSmill cert + CoCTERMSIncoterms 2020PROCESS ROUTERFQDFMQUOTETRANSFERSHIPPART / PROCESSPLANT QUALITY SUSTAINABILITYMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Plant and quality

First article versus sample inspection: what each proves

A first article proves the process can make one conforming part; sample inspection proves a lot matches an agreed defect rate. The numbers behind both.

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12 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-LAS-91540 ft × 16 ft BED · 12 kW FIBREBEAM DETAILKERF & BEAM DETAILN₂ ASSIST · OXIDE-FREE EDGEBED LENGTHBED WIDTHNEST YIELDKERFSINGLE-PIECE CUTSOURCE12 kW fibrePLATEto 20 mmEDGEN₂ assistPROCESS ROUTEDXFNESTCUTDEBURRBENDPART / PROCESSLASER CUTTING FABRICATIONMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Laser cutting

Laser cutting sheet metal enclosures: thickness, tolerance and cost

Laser cutting sheet metal enclosures: the 1.5 mm panel, the ±0.1 mm cut tolerance, the bend that adds 0.4 mm, and the cost arithmetic of one 600 × 400 mm cover.

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10 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-STA-336STATION 1 · PIERCESTATION 2 · FORMDEVELOPED BLANK · 2.0 mm CRCADIE SECTIONDIE SECTION · PUNCH / DIE CLEARANCEBLANK LENGTHSTRIP WIDTHPROGRESSIVE STATIONSPILOT HOLESCLEARANCE 5–8% tPRESS RANGE20–300 TPUNCHING250 TTOOLINGin-housePROCESS ROUTECOILBLANKPIERCEFORMINSPECTPART / PROCESSSTAMPING PRESSESMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Stamping

Die wear and tool life: how volume sets unit price

Die wear decides the strokes a tool survives, and that number divides into the tooling cost. What wears, how clearance drives life, and the volume where it pays.

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9 min read
GANESH MULTITECH · ENGINEERING DRAWING SETGM-ELE-442GUIDE RAILS · 480SHOE DETAILSHOE / BRACKET INTERFACEEN 81-50 · ISO 1461 ≥85 µmRAIL GAUGEFRAME HEIGHTCOUNTERWEIGHTSHOEBRACKETFRAMEScounterweight / carWELDINGfixture MIGCOATINGpowder, in-housePROCESS ROUTECUTFORMFIXTUREWELDCOATPART / PROCESSELEVATOR COMPONENTSMATERIAL / FINISHCRCA · STAINLESS · ALUMINIUMSCALE 1:1 · REV A · ISO 9001 / 14001GANESHMULTITECH.COM/BLOGDRAWN IN-HOUSE · NOT TO SCALE
Elevators

Lift shaft corrosion: design, failure modes and the fix

Lift shaft corrosion starts at welds, edges and water traps. How to specify finish, drainage and material for a counterweight frame that lasts.

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The Ganesh engineering note

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Drawing checks, tolerance tables, coating failures and sourcing costs, written by the team that runs the plants. No daily drip.

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