{"product_id":"benchmark-os40l-overhead-stirrer-ips2050-40","title":"Benchmark Scientific® OS40L Digital Overhead Stirrer, 40L Capacity, with Stand, IPS2050-40","description":"\u003cp\u003eBenchmark Scientific overhead stirrers feature high torque and advanced digital microprocessor control for smooth mixing of low- and medium-viscosity samples. Speed and run time are accurately set and monitored on the LCD screen, and the DC brushless motor runs compact and quiet from 30 to 2,200 rpm.\u003c\/p\u003e\n\u003cp\u003eA feed-through keyless chuck holds accessory shafts (0.5–10 mm) firmly in place and is easily tightened and loosened without tools. The stirrer is protected from damage by sensors that shut down operation in the case of high viscosity or obstruction, while a splash cover protects the connection mechanism from potential corrosion. Unlike most mixers, the Benchmark series is supplied with a support stand and mounting hardware; the stirrer attaches easily and securely to the stand for use with a variety of vessels up to 24 inches high.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e40L mixing capacity (H₂O), up to 50,000 mPas viscosity\u003c\/li\u003e\n\u003cli\u003eMaximum torque 60 Ncm\u003c\/li\u003e\n\u003cli\u003eDigital speed control 30–2,200 rpm with LCD display of speed and time\u003c\/li\u003e\n\u003cli\u003eDC brushless motor — compact and quiet\u003c\/li\u003e\n\u003cli\u003eKeyless feed-through chuck, 0.5–10 mm shafts\u003c\/li\u003e\n\u003cli\u003eOverload\/obstruction shut-off sensors and splash cover\u003c\/li\u003e\n\u003cli\u003eSupplied with support stand, mounting hardware and 4-arm stainless propeller\u003c\/li\u003e\n\u003cli\u003eUniversal 100–240 VAC input; 2-year warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIncludes:\u003c\/strong\u003e stand assembly, 4-arm stainless steel propeller (IPS2050-P-S4) and keyless chuck with protective cover. Optional stainless steel and PTFE (Teflon) propellers are \u003ca href=\"https:\/\/medlabamerica.com\/products\/benchmark-ips2050-overhead-stirrer-propellers\"\u003eavailable separately\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eAlso available: \u003ca href=\"https:\/\/medlabamerica.com\/products\/benchmark-os20l-overhead-stirrer-ips2050-20\"\u003eOS20L Overhead Stirrer, 20L (IPS2050-20)\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" id=\"tech_data\" style=\"margin-top:0;margin-bottom:0;width:100%\"\u003e\u003ctbody\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e\u003cstrong\u003eBenchmark Scientific IPS2050-40, OS-40L\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eMixing Capacity (H₂O)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e40L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eMaximum Torque\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e60 Ncm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eMaximum Viscosity\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e50,000 mPas\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eSpeed Range\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e30–2,200 rpm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eMotor Type\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eDC brushless motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eInput \/ Output Power\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e120 W \/ 100 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eChuck Diameter Range\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e0.5–10 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eExterior Dimensions (W x D x H)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e7.3 x 3.3 x 8.7 in (18.6 x 8.3 x 22.0 cm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eNet Weight (Mixer)\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e2.8 kg (6.2 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eProtection Class\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eIP42\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eAmbient Operating Range\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e5–40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#f5f5f5\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eElectrical\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e100–240 VAC, 50–60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background-color:#ffffff\"\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003eWarranty\u003c\/td\u003e\n\u003ctd style=\"padding:6px 10px;line-height:1.4\"\u003e2 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003cdiv data-mla-docs=\"1\" style=\"border:1px solid #13275C;border-radius:6px;overflow:hidden;margin:14px 0 0\"\u003e\n\u003cp style=\"margin:0;padding:6px 14px;background:#13275C;color:#ffffff;font-weight:700;font-size:12px;letter-spacing:.08em;text-transform:uppercase\"\u003eProduct Documents\u003c\/p\u003e\n\u003cp style=\"margin:0;padding:12px 14px\"\u003e\u003cspan style=\"white-space:nowrap\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0606\/2669\/8378\/files\/Adobe_Icon_368009cd-f452-4bd7-b577-5709c393fd67.png?v=1782487710\" alt=\"PDF\" width=\"16\" height=\"16\" style=\"width:16px;height:16px;object-fit:contain;vertical-align:middle;margin-right:6px\"\u003e\u003ca href=\"https:\/\/www.benchmarkscientific.com\/wp-content\/uploads\/2024\/07\/IPS2050-Overhead-Stirrers-Brochure-EM.pdf\" target=\"_blank\" rel=\"noopener\" title=\"Benchmark IPS2050 Overhead Stirrers Brochure\"\u003eBrochure\u003c\/a\u003e\u003c\/span\u003e  |  \u003cspan style=\"white-space:nowrap\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0606\/2669\/8378\/files\/Adobe_Icon_368009cd-f452-4bd7-b577-5709c393fd67.png?v=1782487710\" alt=\"PDF\" width=\"16\" height=\"16\" style=\"width:16px;height:16px;object-fit:contain;vertical-align:middle;margin-right:6px\"\u003e\u003ca href=\"https:\/\/www.benchmarkscientific.com\/wp-content\/uploads\/2026\/08\/IPS2050-OverHead-Stirrers-manual.pdf\" target=\"_blank\" rel=\"noopener\" title=\"Benchmark IPS2050 Overhead Stirrers Manual\"\u003eProduct Manual\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Benchmark Scientific","offers":[{"title":"US Plug - 115V","offer_id":72016628056202,"sku":"IPS2050-40","price":1529.18,"currency_code":"USD","in_stock":true},{"title":"EU Plug - 230V","offer_id":72016628088970,"sku":"IPS2050-40-E","price":1529.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0606\/2669\/8378\/files\/Benchmark-IPS2050-Overhead-Stirrer-Two-Views.jpg?v=1794453286","url":"https:\/\/medlabamerica.com\/products\/benchmark-os40l-overhead-stirrer-ips2050-40","provider":"MedLabAmerica.com","version":"1.0","type":"link"}