Sommario
Hardware in grado is a China-based OEM/ODM factory delivering welded skids, floor frames, and kitting/tow-train carts engineered for high-utilization automotive and agricultural environments. We combine automatic/robotic MIG saldatura (with TIG where stainless or cosmetic seams are required), upstream laser cutting, precision machining, and export-ready QA to supply repeatable assemblies that slot into your line-side logistics and PPAP requirements.
Panoramica & Casi d'uso
Why this solution for automotive & agricultural environments
Production modules and spares move through facilities that impose shock, vibrazione, and tight takt. Our welded bases and carts are designed around these realities: structural steels (Q235/S235 e Q355/S355) provide stiffness and durability; riferimenti fresati and machined PCDs ensure accurate location; bar di rimorchio, pin receivers, anchor holes, and forklift pockets integrate with existing handling equipment. Where hygiene or aggressive cleaners apply (per esempio., powertrain washdown), we offer 304/316 inossidabile; for lower push force and energy use, 6061/6082 alluminio reduces mass on kitting carts and fixtures.
Typical applications on line-side, kitting, and service operations
- Engine/gearbox skids & cradles with machined datum pads for locator repeatability.
- Body/cab/axle frames sized to common modules (L×W×H da 800×600×500 mm a 2000×1200×900mm).
- Sequencing & kitting carts for trim, elettrico, e elementi di fissaggio, with ESD/grounding pads when electronics are present.
- Tow-train carts for milk runs (manual/tugged/train duty), payloads 200–1500 kg.
- Field service frames with protective bumpers and tie-downs.
Proprietà tecniche
Materiali, profili & loads; tolleranze (ISO 13920/ISO 2768) & qualità della saldatura (ISO 5817)
- Materiali & gradi: Q235/S235, Q355/S355; optional 304/316 stainless and 6061/6082 alluminio.
- Profili & spessori: RHS/SHS/angle/channel/plate; tubes from 40×40×2 a 120×60×4 mm; piatto 4–20 mm.
- Load/duty: Designed for manual, tugged, or train duty; member sizing and gusseting tuned to payload and CG.
- Tolleranze: Welded constructions to ISO 13920 classe B/C; tolleranze generali ISO 2768 m/f. Guidance: planarità ≤1,0–2,0 mm on datum pads; ortogonalità ≤1,5 mm/m. Weld symbols per ISO 2553.
- Qualità della saldatura: Default ISO 5817 classe C; classe B for visible or safety-critical joints. Structural reference to AWS D1.1 if requested.
Finiture & protezione dalla corrosione (e-coat/zinc/powder per ISO 12944/ISO 8501)
- Preparazione della superficie: Clean/blast to ISO 8501; mask datums and bearing bores.
- Systems: E-coat for cavity coverage; Zinco for sacrificial protection; cappotto in polvere (RAL, 70–100 μm DFT) for durable color; industrial paint on request.
- Duplex options: Zinco + polvere o E-coat + polvere for severe environments.
- Verification: DFT per ISO 2808; selection by environment category to ISO 12944.
Opzioni di produzione
MIG automatico/robotico (e TIG se specificato), maschere & infissi, ripetibilità
- MIG automatico/robotico delivers consistent fillets and cycle time; Tig used on stainless or thin sections requiring cosmetic control. Explore related Automated Robotic Welding.
- Maschere personalizzate & infissi provide hard stops and clamp strategy for repeatability; access designed for torch path and spatter control.
Operazioni secondarie: taglio laser, piegarsi, lavorazione; rivestimento & confezione
- Taglio laser, bending/forming for tube and plate; Lavorazione CNC for datums, bores, e PCDs; inserts, bushings, and threaded features installed as specified.
- Rivestimento integrated to your spec; confezione in pallet/crate with protective wrap and labels; returnable dunnage accommodated; pcs per pallet defined during APQP. Vedere: /services/laser-cutting-cnc-machining/ · /services/powder-coating/
Tipi & Geometria
Common assemblies for automotive & agricolo
- Welded skids & floor frames: RHS/SHS bases with cross-members; typical main members 60×40×3 o 80×40×3 mm; forklift pockets, lifting lugs, anchor holes.
- Module frames/fixtures: Nested cradles with riferimenti fresati; tolerance stack managed to ISO 13920 B on locator pads.
- Kitting/tugger carts:
- Ruote: PU, nylon, ghisa, or rubber; Ø125/150/200 mm; ball or roller bearings.
- Layouts: 2 rigid + 2 swivel o 4 swivel with brakes or central lock.
- Load math: Assume 3 di 4 casters carry load when turning; apply 1.3–2.0 fattore di sicurezza. Esempio: 1000 kg payload ⇒ 1000/3 ≈ 333 kg per caster × 1.5 SF ⇒ choose ≥500 kg rated casters (Ø150–200 mm depending on floor).
Qualità & Test
Ciò che verifichiamo (VT, DFT, controlli dimensionali; PT/MT/RT opzionale) e documentazione (PPAP elements on request, WPS/PQR, CoC)
- 100% VT on welds; controlli dimensionali on key datums and overall size; CMM for PCDs and precision pads where required.
- Coating QA: DFT checks per ISO 2808; adhesion/cure per spec.
- CND opzionale: PT/MT/RT on critical joints.
- Documentazione: WPS/PQR, CoC, rapporti di ispezione; PPAP elements (Fai, Control Plan, PFMEA, MSA, PSW) to agreed scope. More on weld quality: /standards/iso-5817/. Explore the related QA doc.
Prezzi & Tempi di consegna
Moq, Politica di esempio, Driver di costo indicativi (Nessun prezzo duro)
- Moq: Aligned to batch size, coating color, and dunnage plan; prototypes/samples available.
- Tempi di consegna: Prototypes in weeks; serial supply depends on jig build, machining content, and coating queue.
- Cost drivers: Steel grade/thickness; total weld length and quality level (C vs B); machined datums/PCDs; caster type/diameter/quantity; duplex coating; packaging/dunnage; scope of PPAP and testing. Start collaboration: /products/custom-metal-frames/ · /products/welding-trolley-carts/ · /services/automatic-welding/
Standard & Conformità
Standard/certificazioni pertinenti & Documentazione fornita
- Saldatura & geometry: ISO 5817 (quality levels), ISO 2553 (symbols), ISO 13920 (welded construction tolerances), ISO 2768 m/f (general), AWS D1.1 where specified.
- Rivestimento: ISO 8501 (preparazione), ISO 12944 (corrosion category & system), ISO 2808 (DFT).
- Automotive QA: PPAP elements (Fai, Control Plan, PFMEA, MSA, PSW) delivered when scoped in PO.
FAQ
Q1: Which materials are best for automotive skids and ag frames?
For stiffness and cost efficiency, Q355/S355 is common. Choose 304/316 where frequent washdown/corrosion risk exists; pick 6061/6082 aluminum to reduce cart mass and push force.
Q2: How do I select casters and verify load capacity?
Use 3-caster load-sharing for turns and a 1.3–2.0 fattore di sicurezza. Esempio: 800 kg payload ⇒ 800/3 ≈ 267 kg × 1.5 ⇒ select ≥400 kg rated casters; diametro Ø150–200 mm depends on floor and thresholds.
Q3: What tolerances can I call out?
Standard builds meet ISO 13920 A.C e ISO 2768 m/f. Typical guidance: planarità ≤1,0–2,0 mm on datum pads; ortogonalità ≤1,5 mm/m. Tighter features are machined.
Q4: Which weld class do you deliver?
Default ISO 5817 classe C; classe B applied to visible or critical joints. Structural reference: AWS D1.1 if required by the drawing.
Q5: E-coat, zinco, or powder—what’s right for me?
Map environment to ISO 12944: zinco for sacrificial corrosion protection, E-coat for edge/cavity coverage, polvere (70–100 µm) for impact and color durability. Duplex systems extend life in severe exposure.
Q6: Can you provide PPAP documentation?
SÌ. We support Fai, Control Plan, PFMEA, MSA, PSW, plus WPS/PQR, CoC, VT/DFT/NDT reports as specified.
D7: What drives price and lead time?
Weld length and class, machined datums/PCDs, Caster Spec, duplex coating, and packaging/dunnage drive cost and schedule. We quote ranges after drawing review.
Upload drawing / Get a quote
Share your drawings (STEP/DWG/PDF), payload and duty (manual/tugged/train), Sistema di finitura, and any PPAP/testing scope. Our engineers will return manufacturability notes and a firm quotation.