Anode material production line design in 2026 covers three separate plant typess, not one: induction-fed zinc-electrowinning anode plate cells, rotary-kiln graphite roasting trains for lithium-ion anodes, and continuous aluminum anodizing lines. Each runs on different throughput bands, different alloy targets and different chemistry control windows, so mixing them under one spec sheet is a common sourcing error [S1][S3][S5].
Zinc-electrowinning anode plate lines (Pb-Ag or Pb-Ca-Sn) pair a medium-frequency induction furnace with robotic ladles, a casting wheel, shearing and a punch press, sized for cell-house feed [S1]. Lithium-battery graphite roasting lines (model KYN-280-10NEM, designed max 1000°C) drive a horizontal rotating barrel through low, mid and high temperature zones with natural gas, while aluminum anodizing lines run a 7-to-9-stage wet chemistry train at 100-5000 t/month capacity [S3][S4][S8].
Zinc electrowinning anode plate line: cast, shear, punch
An automated zinc electrowinning anode plate production line is built around five work cells: medium-frequency induction furnace, robotic feeding device, pouring station, casting machine, shearing machine and punching machine, plus a yard conveyor for stack-out [S1]. The induction furnace is sized to the cathode current density target (commonly 400-550 A/m² in modern zinc cells), while the casting wheel sets the plate pitch that matches the cell-house spacing.
Selection hinges on the plate alloy, plate weight and plate count per day. Buyers running 100,000 t/yr zinc smelters typically need a casting machine capable of 60-90 plates/hour to keep the cell house fed, and the shearing and punching stations must be matched to plate dimensions in the 600-1100 mm length range. A molding line is the right reference category for the casting section, because plate geometry and cooling rate define the grain structure of the Pb-Ag anode.
Lithium-battery graphite anode: rotary kiln, 1000°C, 12-16 t/day
The CAILONEN KYN-280-10NEM rotary roaster is engineered for graphite-anode materials such as petroleum coke, graphite and carbon fiber powder at 10-15 µm, with a designed maximum service temperature of 1000°C and a layer temperature band of 200-1000°C [S3][S4]. Throughput per day is quoted at 12-16 t/day, residence time 7-12 hours, and the low-to-mid temperature barrel is φ1400×31000 mm in SUS304 with 720 kW low-temp plus 840 kW mid-temp heating across 8 zones each [S4].
Process control is tight: ±1°C control accuracy, roaster cylinder speed 1-3 r/min variable frequency, micro-positive furnace pressure around 50 Pa, and N2 purge at 60 Nm³/h with 0.2-0.4 m/s variable flow to keep oxygen out of the high-temp section [S4]. The total installed electric power is roughly 150 kW, gas consumption peaks at 280 Nm³/h, and the hearth is at least 16 mm thick in the low-temp section and 20 mm in the high-temp section, with Cr25Ni35 in the high-temp barrel for creep life [S4].
This is a line-frequency furnace-style installation in the sense that rotary orientation and zone heating dominate the design, but the heating source is natural gas, not induction, so the upstream and downstream material handling follow a conveyor sorting line layout rather than a flask-and-pour foundry pattern. Buyers comparing bids should pin the roaster barrel alloy, the screw feeder flange rating, and the daily tonnage guarantee, not just the nameplate kW.
Aluminum anodizing line: 7-9 wet stages, 10-12 µm film
A 700-1500 t/month aluminum anodizing line is a wet-chemistry train, not a furnace. The 700T/month MEI-AL reference design runs degreasing (free H2SO4 180±30 g/L), alkaline etching (free alkali 40-60 g/L, Al³⁺ 30-120 g/L), neutralization, anodizing (free H2SO4 140-180 g/L, Al³⁺ ≤20 g/L), coloring (stannous sulfate 3-8 g/L), and medium-temperature nickel-fluoride sealing (Ni 0.8-1.3 g/L, F⁻ 0.3-0.7 g/L, pH 5-6.5) [S5][S6][S7].
Anodizing film thickness is targeted at 10-12 µm, with the engineering rule 0.36×1.3×28×0.77 ≈ 10.1 µm at 130 A/m² for 28 minutes on 6 racks [S5]. Tank materials are PP, PVC or stainless steel, heating is steam or electric (with natural gas/LNG/LPG as auxiliary), and process time per anodizing tank is 38 minutes versus 30 minutes of effective current time [S2][S5]. The MEI-AL APL-1500T frame rates supply ability at 1500 t/month and the APL-700T at 700 t/month, with 180-200 day delivery and a 1-set/6-month supply cadence [S2][S5].
For buyers comparing an automatic molding line-style integrated offering against a stick-built cell, the deciding criteria are alloy range (6061 to 6063 is the default), profile length up to 6500 mm, 3-phase 380 V 50 Hz power, hot steam at 6 kg/cm²·G, and wastewater treatment for acidic effluent [S5]. The full horizontal line from Daimeng adds loading, polishing, wax-removing, ED coating, drying and curing stages, lifting capacity to 5000 t/month on 100-15000 mm profiles with 25×10 mm to 300×150 mm cross-sections [S8].
Selection criteria: alloy, throughput, chemistry window
The three line families diverge on three decision axes. First, alloy: zinc lines feed Pb-Ag or Pb-Ca-Sn cast plates, graphite lines feed 10-15 µm carbon powder, and anodizing lines feed 6061-6063 (or broader) aluminum extrusions [S1][S3][S5]. Second, throughput: zinc casting is plate-count per shift, graphite is t/day (12-16), and anodizing is t/month (100-5000) [S1][S4][S8]. Third, chemistry control: zinc casting controls melt temperature and cooling rate, graphite controls ±1°C zone temperature and N2 purge, and anodizing controls free acid (140-180 g/L), Al³⁺ (≤20 g/L) and current density (130 A/m²) [S4][S5].
Buyers who misapply one spec family to another tend to overspend. A graphite roaster quoted by daily tonnage cannot be compared to an anodizing line quoted by monthly tonnage without a duty-cycle conversion; a 1500 t/month anodizing line at 600 operating hours/month is roughly 2.5 t/h, well below a roaster's 0.5-0.7 t/h but on a much longer annual schedule. The same caution applies to zinc plate casting, where plate/hour is the right unit, not tonnes per month.
Standards, sourcing and 2026 procurement signals
The CAILONEN graphite line is designed to "national standards of industrial furnaces" with components individually performance-tested and reports issued, and the export configuration meets international export standards [S4]. The anodizing line is built to handle 6061-6063 alloy extrusions with 10-12 µm film, 400 m²/T average coverage, and 0.9 equipment usage rate, and the wastewater train must neutralize acidic effluent before discharge [S5]. No single IEC or ISO number governs the entire anode line, so the engineering reference points buyers use are the alloy spec (e.g. 6061, 6063), the furnace-design national standard cited in [S4], and the in-house chemical windows from [S5].
The 2026 sourcing signal is capacity bifurcation: Chinese vendors (CAILONEN in Wuhan, MEI-AL in Guangdong, Daimeng, ZJSunward) are offering 1 set per 6 months at 1500 t/month anodizing, 12-16 t/day roaster throughput, and integrated induction casting for zinc plates, with delivery stretching to 180-200 days on the bigger anodizing skids [S2][S4][S5]. For a related read on how these lines plug into broader Industry 4.0 spec bands, see Anode Material Industry 4.0 Adoption: 2026 Spec Bands, Data Lines, and Sourcing Shifts. Process engineers specifying now should pin the KYN-280-10NEM barrel alloy and zone kW, the anodizing tank chemistry windows, and the induction furnace plate-per-hour rate, since vendor nameplate kW alone has proved a poor proxy for delivered throughput in the 2024-2026 build cycle.