USED Harvard Apparatus 70-3333

BioLabTek eBay Template Liquid Pumps Harvard Apparatus Pump 33 DDS Dual Drive Syringe Pump Programmable syringe pump with two independent drives, a 7-inch touchscreen, and flow rates from picoliters to 106 ml/min. QC PASS Tested & Working At a glance ManufacturerHarvard Apparatus ModelPump 33 DDS Part / Catalog #70-3333 Serial #P-100313 Year / DOM2019 ConditionLightly Used, Excellent What's Included Harvard Apparatus Pump 33 DDS Dual Syringe PumpAC power adapterPower cord Nothing else is included unless shown in the photos Condition & Testing Unit powers on and both syringe drives run normally as shown on the display; the exterior is clean with no visible damage; calibration verification is the responsibility of the buyer. Specifications Accuracy± 0.25 % Syringe drivesTwo independent syringe mechanisms (P1 and P2) Max linear force (per syringe)70 lb (31.75 kg) at 100% force up to 90 ml/min with a 60 ml syringe (32.573 mm ID); 50 lb (22.6 kg) at 100% force from 90 to 106 ml/min Minimum syringe size0.5 µl (0.103 mm minimum inner diameter) Maximum syringe size60 ml (32.573 mm maximum inner diameter) Minimum flow rate1.02 pl/min (0.5 µl syringe, 0.103 mm ID) Maximum flow rate106 ml/min (60 ml syringe, 32.573 mm ID) Display7" WQVGA TFT color display with touchscreen Twin condition modeBoth syringes of the same size operate identically (flow rate, direction, and volume) Independent condition modeBoth syringes operate independently Reciprocating condition modeContinuous flow; both syringes of the same size operate identically in opposite directions Non-volatile memoryStores all settings Pump command controlASCII command set Real-time clockYes, with battery backup (battery included and required) Drive motorTwo independent stepper motors Motor drive controlMCU controlled Minimum step rate27 sec/µstep Maximum step rate26 µsec/µstep Stall detectionYes, independent axis stall detection Power connectorBarrel connector, (-) barrel (+) post, 2 mm x 5 mm male plug RS-485IEEE-1394, 6 position (pump-to-pump communication only) USBType B RS-2329-pin D-Sub connector TTL I/O15-pin D-sub connector (one per axis) Footswitch connectionsMini phono jack Input power30 V, 2.0 A Power supplyInput 100 to 240 VAC, 50/60 Hz; output 30 V, 2.0 A, 50 W Dimensions (L x D x H)11 x 15 x 8 in (28 x 39 x 21 cm) Weight21 lb (9.09 kg) Operating temperature4°C to 40°C (40°F to 104°F) Storage temperature-10°C to 70°C (14°F to 158°F) Operating humidity80% @ 25°C ambient temperature Storage humidity20% to 80% RH, non-condensing Specs from manufacturer literature for reference. Verify against your application. Terms & Conditions Payment We accept most payment types and work with your organization's accounting requirements. Contact us if you need a formal quote or to procure with a PO. Shipping Items ship within 1 to 2 business days after cleared payment. We ship via USPS, FedEx, UPS, or freight, to the contiguous USA and worldwide. Worldwide buyers are responsible for customs and duty import charges. Need expedited service or billing to your own FedEx or UPS account? Tell us at purchase. You may arrange your own shipping through your own carrier on request. Return Policy 60-day returns on all products from time of delivery. If anything is not right, contact us first. We want you fully satisfied. Why BioLabTek We power on and function-test, then document what we saw Photos show the exact unit you receive Instruments packed to survive the carrier POs and formal quotes welcome for academic and corporate buyers BioLabTek | Scientific Equipment Specialists | © 2026 BioLabTek