Electric Furnace Lid Open/Close Cylinder 50/36-680 50/36-680

The Electric Furnace Lid Open/Close Cylinder 50/36-680 50/36-680 is manufactured for high-temperature electric furnace, casting, and crystal growing equipment. Heat-resistant seals, stainless steel rod options, and specialised surface treatments are available to maintain reliable operation in extreme thermal environments. Bore diameter Ø50mm, piston rod diameter Ø36mm, stroke 680mm. Materials: barrel — seamless honed steel tube; piston rod — 45# or 40Cr alloy steel, induction hardened Ø0.03-0.05mm oversize then hard chrome plated to Ra≤0.4μm; seals — Parker (USA) or Merkel (Germany) standard. All cylinders are hydraulically pressure-tested before dispatch. Custom bore, stroke, mounting, port position and surface treatment available on request. Contact Hengshui export sales for technical drawings and quotation: sales@wx-hxy.com | WhatsApp +86 133 8224 8877.