ATM machine sheet metal fabrication is the controlled process of converting flat metal sheets — typically 1.0 mm to 3.0 mm cold-rolled steel (SPCC), galvanised steel, or stainless steel — into the structural enclosures, fascia panels, internal mounting brackets, cash-cassette housings, and secure safe doors that form the body of an Automated Teller Machine. The process demands tight dimensional tolerances (typically ±0.1 mm on mating surfaces), high cosmetic surface quality, and robust structural integrity to meet the vandal-resistance, weather-sealing, and thermal management requirements of the ATM operating environment.
According to the Journal of Manufacturing Science and Engineering (ASME, Vol. 145, 2023), laser-cut and CNC-bent sheet metal enclosures achieve dimensional repeatability of ±0.05 mm across production batches when produced with fibre laser systems operating at 3 kW or above combined with servo-driven press brakes — a specification our factory consistently meets or exceeds.
At Zhejiang Jiafeng Electrical & Mechanical Co., Ltd., we manufacture ATM enclosures and sub-assemblies for global financial equipment OEMs using a fully in-house process chain: laser cutting → CNC punching → automated bending → robotic welding → powder coating or electroplating → electromechanical integration and final testing. Every stage is performed within our Jiashan County, Zhejiang factory, giving you a single point of accountability and significantly reduced lead times.
A typical full-function ATM contains 40–80 individual sheet metal parts. The table below lists the primary structural and functional components we fabricate, along with the applicable processes and tolerance requirements referenced against industry standards (EN 14353:2017 — Safe and ATM security requirements; ISO 2768-m general tolerances).
| ATM Component | Material | Thickness | Primary Processes | Tolerance | Surface Finish |
|---|---|---|---|---|---|
| Outer Fascia Panel | SPCC / GI Steel | 1.2 – 1.5 mm | Laser cutting, CNC bending, pad printing | ±0.1 mm | Powder coat (RAL custom) |
| Top/Side Enclosure Panels | SPCC / Stainless 304 | 1.5 – 2.0 mm | Laser cutting, CNC punch, bending, welding | ±0.15 mm | Powder coat or zinc plating |
| Safe Door & Frame | High-strength steel | 3.0 – 6.0 mm | Laser cutting, robotic MIG welding, grinding | ±0.2 mm | Powder coat + primer |
| Cash Cassette Housing | SPCC | 1.0 – 1.5 mm | CNC punch, precision bending, spot welding | ±0.05 mm | Zinc plating (blue-white) |
| Internal Mounting Brackets | SPCC / Aluminium 6061 | 1.2 – 2.0 mm | Laser cutting, punching, bending, tapping | ±0.1 mm | Zinc plating or powder coat |
| Card Reader Bezel | Stainless Steel 304 | 1.0 – 1.5 mm | 5-axis CNC machining, laser cutting, polish | ±0.05 mm | Brushed + passivation |
| Thermal / EMC Shield | Galvanised Steel | 0.8 – 1.2 mm | CNC punch (perforated), bending, riveting | ±0.15 mm | Zinc plating |
| Display Hood & Surround | SPCC / Aluminium 5052 | 1.2 – 2.0 mm | Laser cutting, CNC bending, pad print | ±0.1 mm | Powder coat (custom RAL) |
| Keypad Mounting Plate | Stainless Steel 304 | 1.5 – 2.0 mm | CNC punch, precision bending, press riveting | ±0.05 mm | Passivation or brushed |
| Base Frame / Chassis | SPCC / GI Steel | 2.0 – 3.0 mm | Laser cutting, robotic welding, CNC drilling | ±0.2 mm | Powder coat + primer |
Tolerance values align with ISO 2768-m (medium) class and EN 14353:2017 structural requirements. Tighter tolerances available on request.
Every ATM enclosure order moves through a documented, ISO 9001:2015-controlled workflow. The entire process — from raw coil to tested assembly — is performed under one roof at our Zhejiang facility. Learn more about our sheet metal manufacturing capabilities and precision machining services.
2D/3D files reviewed; Design-for-Manufacturability (DFM) feedback within 24 hours. Bend radii, hole-to-edge distances, and weld access confirmed per ATM structural requirements.
Mill-certified SPCC, galvanised steel, and stainless steel sourced with mechanical property certs. RoHS compliance verified by in-house XRF element analyser (10–20 ppm sensitivity, RSD <10%).
3,000 W – 12,000 W fibre laser systems produce burr-free edges with ±0.05 mm dimensional accuracy. Complex cutouts for card readers, cash slots, and cable routing cut in a single setup.
NCT CNC punch presses (1500 × 3000 mm bed; 45 T – 260 T) produce ventilation arrays, cable entry knockouts, and EMC shield perforation patterns at high throughput with excellent surface quality.
Salvagnini servo press brakes and 35 T – 250 T CNC press brakes deliver ±0.3° bend angle repeatability — essential for the panel-to-panel mating gaps that determine ATM weather sealing performance.
3,000 W laser welding robots and CO₂ welding robots produce continuous, slag-free seams. Structural safe frames and chassis assemblies are MIG welded using dedicated fixtures for repeatability.
High-precision CNC drilling and tapping centres (M2.5 – M10 thread range) create mounting interfaces for card reader modules, cash dispenser mechanisms, and harness routing brackets.
Full electroplating lines (96–128 h salt-spray rated zinc) and two powder coating lines with 21-slot immersion pre-treatment. Custom RAL colours, silkscreen, and pad printing in-house.
Our 5-axis machining centres produce card reader bezels, locking mechanism housings, and hinge components to ±0.005 mm — features impossible with sheet metal alone.
Our Level-5 electromechanical assembly lines install wiring harnesses, PCBs, sensors, and mechanical modules into the fabricated enclosure — delivering a tested, integration-ready ATM sub-system.
CMM measurement [E=(1.9+3L/1000) µm], CCD optical dimension inspection (±50 µm), RoHS XRF analysis, salt-spray test, and first-article inspection report issued with every batch.
Custom foam-lined, anti-static export packaging. EXW, FOB Ningbo/Shanghai, and CIF terms available. Full multilingual export documentation and CE / RoHS certification included.
Material selection for ATM enclosures must balance vandal resistance, corrosion performance, weight, and finish compatibility. The following table is compiled from manufacturer datasheets (JIS G3141 for SPCC, ASTM A240 for stainless steel, EN AW-5052 for aluminium) and our production experience across financial equipment projects.
| Material | Standard | Tensile Strength | Yield Strength | Density (g/cm³) | Corrosion Resistance | Recommended Finish | Best ATM Application |
|---|---|---|---|---|---|---|---|
| SPCC Cold-Rolled Steel | JIS G3141 | 270–370 MPa | ≥ 205 MPa | 7.85 | Low (requires coating) | Powder coat + primer | Outer panels, chassis, brackets |
| Galvanised Steel (SGCC) | JIS G3302 | 270–370 MPa | ≥ 205 MPa | 7.85 | Good (Zn layer ~275 g/m²) | Powder coat | Through-the-wall ATM, outdoor units |
| Stainless Steel 304 | ASTM A240 | 515–720 MPa | ≥ 205 MPa | 7.93 | Excellent (passive film) | Brushed + passivation | Card reader bezels, keypad plates, high-traffic surfaces |
| Stainless Steel 316 | ASTM A240 | 485–690 MPa | ≥ 170 MPa | 7.98 | Superior (Mo-enhanced) | Electropolish or brushed | Coastal / marine environment ATMs |
| Aluminium 5052 | EN AW-5052 | 195–260 MPa | ≥ 130 MPa | 2.68 | Very Good (Al₂O₃ layer) | Anodising / powder coat | Display hoods, lightweight panels |
| Aluminium 6061-T6 | ASTM B209 | 276–310 MPa | ≥ 241 MPa | 2.70 | Good | Anodising | Machined structural brackets, heat sinks |
Data sourced from JIS G3141-2021, ASTM A240/A240M-22, and EN 485-2:2022 material standards. Values are indicative; contact us for lot-specific mill certificates.
ATM manufacturers and OEMs operate in a tightly regulated environment. The enclosure must satisfy structural security requirements (EN 14353:2017), EMC shielding performance, IP weatherproofing, and RoHS/REACH chemical compliance simultaneously. Our quality system is built around these demands.
| Standard / Parameter | Scope | Our Capability | Measurement Method |
|---|---|---|---|
| ISO 2768-m (General Tol.) | Linear & angular dimensions | Standard production tolerance | CMM, CCD vision system |
| ISO 2768-f (Fine Tol.) | Critical mating surfaces | ±0.05 mm on laser cuts | CMM [E=(1.9+3L/1000) µm] |
| Bend Angle Tolerance | CNC press brake | ±0.3° | Optical angle gauge |
| Salt-Spray Resistance | Zinc electroplate finish | 96–128 h (ISO 9227) | Salt-spray cabinet test |
| RoHS Hazardous Substances | Pb, Cd, Hg, Cr6+, PBBs, PBDEs | <1,000 ppm (Cd <100 ppm) | XRF analyser (1–10 ppm, RSD <5%) |
| Weld Seam Quality | ISO 5817 (Steel welding) | Quality Level B (highest) | Visual + dye penetrant |
| Powder Coat Adhesion | ISO 2409 cross-cut test | Classification 0 (no detachment) | Cross-cut adhesion tester |
| Coat Thickness | Powder coat layer | 60–120 µm | Eddy-current thickness gauge |
| Tensile / Peel Testing | Weld joints & riveted joints | Load accuracy ±1% | In-house tensile tester |
ATM enclosures impose far more demanding engineering requirements than general industrial sheet metal. The following design parameters — drawn from EN 14353:2017 (protection requirements for ATMs and cash dispensers), IEC 60529 (IP rating standard), and ANSI/UL 291 (commercial safes) — govern our fabrication approach for every ATM project.
| Design Requirement | Industry Standard | Specification | How We Address It |
|---|---|---|---|
| Anti-vandalism / Attack Resistance | EN 14353:2017 | Grade 0–3 structural protection | 3–6 mm high-strength steel safe door, full-penetration MIG welds |
| Weatherproofing (Outdoor ATMs) | IEC 60529 | IP54 minimum; IP65 preferred | Continuous laser-welded seams, gasket grooves ±0.1 mm, powder-coated GI steel |
| EMC Shielding | IEC 61000-4 | Class B conducted/radiated emissions | Perforated GI steel shields, zinc-plated contact surfaces, bonding straps |
| Thermal Management | ASHRAE Class A2 | Inlet temp: 10–35°C; max component 70°C | CNC-punched ventilation grilles, aluminium heatsink brackets |
| Chemical Compliance | EU RoHS 2 (2011/65/EU); REACH | Restricted substances below threshold | XRF lot-by-lot testing; RoHS-compliant plating lines |
| Panel Gap / Mating Tolerance | OEM drawing (typically ±0.3 mm) | 0.5–1.5 mm assembly gap | CMM first-article inspection, servo press brakes ±0.3° bend accuracy |
| Coating Adhesion (outdoor) | ISO 2409 / ASTM D3359 | Class 0 cross-cut adhesion | 21-slot ceramic pre-treatment line + electrostatic powder coat |
| Safe Certification (Optional) | UL 291 / EN 14450 | Level I or II attack resistance | Consult our engineering team for compliant safe door design |
We are not a general sheet metal job shop. Jiafeng's vertical integration — from raw coil to tested electromechanical assembly — makes us a natural manufacturing partner for ATM OEMs and financial equipment companies worldwide.
| Capability | Jiafeng (In-House) | Typical Competitor |
|---|---|---|
| Fibre laser cutting (up to 12 kW) | ✔ In-house | Often sub-contracted |
| Salvagnini automated bending | ✔ In-house | Manual bending only |
| Robotic welding (laser + MIG) | ✔ In-house | Manual TIG only |
| 5-axis precision machining | ✔ In-house | Sub-contracted |
| Full electroplating & powder coat lines | ✔ In-house | Sub-contracted |
| Level-5 electromechanical integration | ✔ In-house | Not offered |
| CMM dimensional inspection | ✔ In-house (±0.002 mm) | External lab |
| RoHS XRF lot testing | ✔ Every batch | Rarely tested |
| CE / RoHS certification support | ✔ Included | Extra cost |
| OEM / ODM product development | ✔ Full R&D team | Not available |
The global ATM market was valued at approximately USD 21.4 billion in 2023 and is projected to grow at a CAGR of 4.8% through 2032, according to market research published by Global Market Insights (2024). Emerging markets in Asia-Pacific, Africa, and Latin America are driving hardware demand as financial inclusion initiatives expand ATM network coverage into previously unbanked communities.
Sheet metal enclosures account for 25–35% of the total bill-of-materials cost in a typical full-function ATM (based on disclosed component cost data from major ATM OEM annual reports). For through-the-wall and outdoor kiosk variants, enclosure costs are higher due to more demanding IP and vandal-resistance requirements. Selecting a fabricator who understands these structural and regulatory requirements — not just cutting and bending metal — directly affects total product cost, time-to-market, and field reliability.
The trend toward thinner, lighter ATM form factors (slim-wall and recycler-based ATMs) is driving demand for higher-precision sheet metal with tighter bend tolerances and better surface finish, as internal component clearances shrink. This is precisely the capability advantage that our Salvagnini automated benders and fibre laser systems provide — consistent, repeatable results that manual fabrication cannot reliably achieve at production volumes.
Our experience in the financial equipment sector extends beyond ATMs to include power control cabinets, fire control systems, and custom industrial enclosures. All projects benefit from the same quality management infrastructure. Explore our full electromechanical integration services to see how we deliver complete systems, not just fabricated parts.
Full-process laser cutting, CNC bending, robotic welding, electroplating, and powder coating for all enclosure types.
5-axis CNC machining for ATM card reader bezels, locking components, and precision brackets to ±0.005 mm.
Level-5 assembly of wiring, PCBs, sensors, and controls into fabricated ATM enclosures — delivered as tested sub-systems.
Full product development from concept to mass production — design, tooling, certification, and supply chain management.
Send us your drawings, specifications, or just your ATM model reference. Our engineering team provides DFM feedback and a detailed quotation — typically within 24–48 hours.
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