10 min read
Standards
→REACH chemical compliance: scope, limits and evidence
REACH chemical compliance for fabricated metal parts: the 0.1% article threshold worked through a coated panel, and the statement a buyer should hold.
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 40
Search the library →11 min read
Standards
→EN 81-20 for lift safety: scope, limits and what to ask for
EN 81-20 sets 1,000 N on a locked landing door and 2,000 N on a car roof. Here is the scope, where the standard stops, and the drawing fields it implies.
12 min read
Genset and canopies
→Genset canopy frame manufacturing: stamping, welding, coating
How a genset canopy frame is cut, fixtured and welded, with the squareness, diagonal and weld-sequence numbers that keep doors and panels aligned.
11 min read
Laser cutting
→Laser cutting vs stamping: cost, tolerance and volume
Laser cutting vs stamping comes down to a crossover quantity you can calculate. Worked break-even for a 2 mm bracket, plus what each process cannot do.
10 min read
Elevators
→Elevator sill level: design, failure modes and the fix
A sill 6 mm high is a trip hazard and 6 mm low holds water. How FFL tolerance, bracket adjustment and sill stiffness set the finished level.
10 min read
Standards
→ISO 9013 for laser cut edges: scope, limits and classes
ISO 9013 classifies a laser cut edge by perpendicularity and roughness, not by whether it looks clean. What each range allows and how to write the note.
10 min read
Materials
→Galvanic corrosion in mixed-material assemblies
Galvanic corrosion in sheet metal assemblies: the series, the area ratio, the current that removes metal, and the joint details that break the couple.
10 min read
Materials
→Material grade substitution: when a cheaper grade works
Material grade substitution without breaking fit, finish or certification: the five checks, the gauge arithmetic, and the cases where the change is refused.
10 min read
Laser cutting
→Laser Cutting Mild Steel: Thickness and Edge Quality
Kerf, dross and edge roughness for mild steel from 0.8 mm to 20 mm, plus the nitrogen-to-oxygen crossover and the drawing notes that follow from it.
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