OBRABOTKAMETALLOV Vol. 28 No. 1 2026 230 EQUIPMENT. INSTRUMENTS References 1. Vinokurov E.G., Burukhina T.F., Guseva T.V. Gal’vanicheskoe proizvodstvo v Rossii: otsenochnyi podkhod, zadachi povysheniya resursnoi i ekologicheskoi eff ektivnosti [Electroplating industry in russia: assessment approach, improvement tasks of resource and environmental eff ectiveness]. Tekhnologiya metallov = Technology of Metals, 2020, no. 7, pp. 2–6. DOI: 10.31044/1684-2499-2020-0-7-2-6. 2. Solovjev D.S., Solovjeva I.A., Konkina V.V., Litovka Y.V. Improving the uniformity of the coating thickness distribution during electroplating treatment of products using multi anode baths. Materials Today: Proceedings, 2019, vol. 19 (5), pp. 1895–1898. DOI: 10.1016/J.MATPR.2019.07.036. 3. Dli M.I., Stoyanova O.V. Sposoby predstavleniya ekspertnykh dannykh v sistemakh podderzhki prinyatiya reshenii po upravleniyu slozhnymi proektami [The techniques of expert data representation in the systems of decision making support for complex project management]. Neirokomp’yutery: razrabotka, primenenie = Neurocomputers, 2016, no. 7, pp. 21–28. Pneumatic device for lifting a submersible drum for electroplating small parts in bulk Mikhail Matrokhin a, Vladimir Nemtinov b, * Tambov State Technical University, Sovetskaya str., 106/5 room 2, Tambov, 392000, Russian Federation a https://orcid.org/0009-0007-2098-5707, snakerm@yandex.ru; b https://orcid.org/0000-0003-2917-3610, nemtinov@mail.tstu.ru Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2026 vol. 28 no. 1 pp. 220–232 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2026-28.1-220-232 ART I CLE I NFO Article history: Received: 27 September 2025 Revised: 26 November 2025 Accepted: 14 February 2026 Available online: 15 March 2026 Keywords: Installation of electroplating of small parts in bulk Pneumatic lifting device Immersion drum Rational values of the parameters Orthogonal central compositional plan of the factor experiment ABSTRACT Introduction. The main problems that arise during electroplating processes include, at the design stage of electroplating systems, the challenge of selecting the appropriate type of protective coating from a variety of options, as well as choosing the appropriate equipment from the many diff erent types produced by industry – in particular, installations for the electroplating of small parts in bulk. The purpose of the work is to increase the economic effi ciency of installations for the electroplating of small parts in bulk. Methodology. The decision to create an electronic model (digital twin) of the device at the fi rst stage and then its physical prototype was based on the use of system analysis methods, mathematical modeling, and experimental design. A physical prototype was built based on the created electronic model of the installation using graphic editors. At the design stage, the parameters of a pneumatic lifting device for a submersible drum were determined; the optimal lifting time is ensured by the following key parameters: piston rod stroke: 409–410 mm; required force for lifting the drum with parts: 1.80–1.90 kN; and pressure in the compressor system supplied to the pneumatic cylinder: 5.30–5.40 bar. These values were obtained from an experiment using an orthogonal central composite design for a factorial experiment on a physical prototype of the installation. Results and discussion. The proposed design solution diff ers from other drum lifting mechanisms in that it eliminates manual operation of the lifting mechanism and counterweight. The lifting mechanism is located outside the installation; the main components of the device are manufactured as separate units and assembled into a single structure using bolted connections. The results of the fi nal tests of the physical prototype of the electroplating installation for small parts in bulk using a pneumatic device for lifting a submersible drum demonstrated its high economic effi ciency. For citation: Matrokhin M.A., Nemtinov V.A. Pneumatic device for lifting a submersible drum for electroplating small parts in bulk. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science, 2026, vol. 28, no. 1, pp. 220–232. DOI: 10.17212/1994-6309-2026-28.1-220-232. (In Russian). ______ * Corresponding author Nemtinov Vladimir A., D.Sc. (Engineering), Professor Tambov State Technical University, 106/5 room 2, Sovetskaya str., 392000, Tambov, Russian Federation Tel.: +7 4752 63-07-06, e-mail: nemtinov@mail.tstu.ru
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