Cambridge Scientific
Used Lab Equipment

Used Lab Equipment

We typically have used and reconditioned pumps in stock from leading manufacturers like Cole-Palmer and Watson/Marlow.

Pumps: 1-15 of 65

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Cole Parmer Masterflex 7524-00 Microprocessor Pump DriveImage Coming Soon

Cole Parmer Masterflex 7524-00 Microprocessor Pump Drive

Cambridge ID #: 19003

Description:

The Microprocessor Pump Drive system is useful in laboratory and scientific applications where highly accurate controlled flow rates are desired, along with digital readouts. The system drives a wide variety of standard pump heads. Including peristaltic and diaphragm types.

Specifications:

  • Frequency: 50/60 Hz
  • Speed Regulation: +/- 0.2% of full speed
  • Operating Temperature: 0°C to 40°C
  • Storage Temperature: -10°C to 60°C
  • Humidity: 20% to 95%
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Cole Parmer Masterflex 7550-60 Microprocessor Pump DriveImage Coming Soon

Cole Parmer Masterflex 7550-60 Microprocessor Pump Drive

Cambridge ID #: 19008

Description:

The direct-reading Pump Drive enables you to obtain consistent flow rates with superb speed regulation. It’s a great time saver where repetitive tasks or frequent changeovers are required. Just press a key to set up for new tubing sizes, materials, and flow rates. The digital display verifies all your settings.  

Specifications:

  • Cumulative Volume Capacity: 0.01 mL to 99999 L
  • Operating Temperature Range: 0°C to 40°C
  • Relative Humidity: 20% to 90%
  • Dimensions (W x H x D): 10” x 6.75” x 8
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Welch 8920A Vacuum PumpImage Coming Soon

Welch 8920A Vacuum Pump

Cambridge ID #: 18943

Description:

Refrigeration service pump is designed for removing air and moisture from industrial and commercial chillers. Pump includes a gas ballast valve that inhibits condensation reducing corrosion, an On/Off switch, 3-wire cord, and oil.

Specifications:

  • Displacement: 7.7 cfm
  • Ultimate Pressure Torr: 3 x 10-4
  • Intake Male SAE Flare: 3/4
  • NPT Inlet: 3/4"
  • Voltage: 115/230
  • Amps AC: 6.8/3.4
  • Dimensions (L x H x W): 20.5” x 10.75” x 7.125”
  • Hz: 60
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Pfeiffer TSH 071 E Turbomolecular Drag Pumping Station

Pfeiffer TSH 071 E Turbomolecular Drag Pumping Station

Cambridge ID #: 18936

Specifications:

  • Weight: 16 kg
  • Volume Flow Rate
    • Nitrogen: 33 l/s
    • Helium: 38 l/s
    • Hydrogen: 37 l/s
  • Working range: 1000 mbar to < 1 x 10-8
  • Electrical connection value: 0.1 kW
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Watson Marlow 323E Peristaltic Pump

Watson Marlow 323E Peristaltic Pump

Cambridge ID #: 18844

Description:

Peristaltic pumps are the simplest pump, with no valves, seals or glands to clog or corrode. The fluid contacts only the bore of a tube, eliminating the risk of the pump contaminating the fluid, or the fluid contaminating the pump. Peristaltic pumps can run dry. Peristaltic pumping is ideal for most fluids, including viscous, shear-sensitive, corrosive and abrasive fluids, and those containing suspended solids. They are especially useful for pumping operations where hygiene is important. Peristaltic pumps operate on the positive displacement principle. They are particularly suitable for metering, dosing and dispensing applications. Pumps are easy to install, simple to operate and inexpensive to maintain.

Specifications:

  • Supply voltage/frequency: 100-120V/200-240V 50/60Hz 1ph
  • Maximum voltage fluctuation: ±10% of nominal voltage. A well regulated electrical mains supply is required along with cable connections conforming to the best practice of noise immunity
  • Power consumption: 100VA
  • Full load current: <0.43A at 230V; <0.86A at 115V
  • Operating temperature range: 4°C to 40°C, 40°F to 104°F
  • Storage temperature range: -40°C to 70°C, -40°F to 158°F
  • Maximum altitude: 2,000m, 6,560ft
  • Humidity (non-condensing): 80% up to 31C, 88F, decreasing linearly to 50% at 40C, 104F
  • Noise: <70dB(A) at 1m
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Cole Parmer 7523-30 Peristaltic Pump

Cole Parmer 7523-30 Peristaltic Pump

Cambridge ID #: 18860

Description:

The Console Drives are highly featured yet easy to operate Masterflex L/S pump drives, These drives are self contained compact unites that include a drive motor and all operating controls. The keypad is laid out on a sloped front panel for ease of control and for quick and easy indication status. A digital display provides a continuous indication of flow rates, actual rpm or percentage of maximum rpm.

Specifications:

  • Maximum Speed: 100 rpm
  • Minimum Speed: 1.6 rpm
  • Operating Temperature: 0°C to 40°C
  • Storage Temperature: -10°C to 60°C
  • Chemical Resistance: Exposed material is paint, plastic, aluminum, and vinyl
  • Line Voltage Limits: 90 to 130 V AC, 50/60 Hz
  • Dimensions (L x W x H): 11.5 x 7 x 7 in. (29.2 x 17.8 x 17.8 cm)
  • Weight: 15 lbs. (6.8 kg)
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Millipore Cogent M1 Tangential Flow Filtration Systems

Millipore Cogent M1 Tangential Flow Filtration Systems

Cambridge ID #: 18859

Descriptions:

The Cogent M1 system is an easy-to-use bench-top TFF system that is ideally suited for process development, scaling studies, as well as clinical trials and small-scale production. An innovative and intelligent design, the system enables an extremely low hold-up volume for maximum volume concentration and optimal product recovery. Equipped with a 10-liter tank with embedded balance, the Cogent M1 system can also run in fed-batch or diafiltration mode using an optional transfer pump, which enables the system to process up to 100 liters or more based on product and membrane filter characteristics.

Specifications:

  • Filtration Area: 0.1 sq. m to 1.14 sq. m
  • Minimum Working Volume: 300 mL at 20% feed pump speed
  • Starting Volume: Tank volume of 10 liters
  • Hold-up Volume: < 10 mL (excluding cassette)
  • Process Temperature Range: 4°C to 50°C (39°F to 122°F)
  • Maximum Feed Flow Rate: 4.5 L/min at 5 bar g (72.5 psi)
  • Minimum Feed Flow Rate: 200 mL/min
  • Maximum Operating Pressure: 5 bar g (72.5 psi)
  • Maximum System Pressure: 6 bar g (86 psi) before pump shut-off
  • Optional Transfer Pump Flow Rate: Tubing dependant (0.16 to 2300 mL/mn)
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Cole Parmer Masterflex Console Drive 77521-40 Peristaltic Pump

Cole Parmer Masterflex Console Drive 77521-40 Peristaltic Pump

Cambridge ID #: 18850

Economical and easy-to-use analog drives offer precise speed control—ideal for metering applications. Contains a reversible motor to purge tubing before and after pumping fluid and a  separate single turn speed control.

Specifications:

  • Speed Range: 6 - 600 rpm
  • Speed Control:+/- 2%
  • Maximum Flow Rate:3400 mL/min
  • Minimum Flow Rate:36 mL/min
  • Dimensions: 5 x 7 x 7 in
  • Power Requirements:90 to 130VAC, 1.5A
  • Motor hp: 1/10
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Agilent G3199B Quiet Cover

Agilent G3199B Quiet Cover

Cambridge ID #: 18592

Specification:

 

  • Weight: 20.5 kg (45 lbs)
  • Dimensions: Kickstand up: 85 × 32 × 44 cm (33.5 × 12.5 × 17.3 inches) (L × W × H)
  • AC input voltage: 100 to 240 VAC ±10%
  • DC output voltage: +24 V
  • Output load (Max.): 1.25 A
  • Input frequency: 47 to 63 Hz
  • Power consumption: 11 W
  • Rated current: 450 mA
  • Ambient temperature: 5 to 35 °C (41 to 95 °F)
  • Humidity: 15 to 95%
  • Altitude: ≤ 4600 m (14950 ft)
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Cole Parmer Masterflex 7554-90 Peristaltic Pump

Cole Parmer Masterflex 7554-90 Peristaltic Pump

Cambridge ID #: 18466

The Masterflex L/S Economy Variable-speed drive is an economical and versatile variable-speed drive with a wide flow range. This product features a separate single-turn speed control and on/off switch with green power indicator to maintain speed setting while turning pump on/off. The 1/20-hp unidirectional motor (counterclockwise) as soft start and back EMF for 5% speed control. Stackable painted steel housing is IP22 rated for protection from vertically falling water.

 

Specification:

 

  • Drive Speed Range: 20 - 600 rpm
  • Maximum Torque: 90 oz-in
  • Line Voltage Limits (50-60 Hz): 90-130 V
  • Power Output: 37 W (0.05 hp)

 

  • Maximum Current

 

    • 115 V Units: 1.5A, shorted output conditions
    • 230 V Units:  0.9A, shorted output conditions

 

  • Speed Regulation

 

    • Line: ±2%
    • Load: ±3%
    • Temperature Drift: ±10%
  • Enclosure Rating: IP22 per IEC529
  • Humidity (non-condensing): 10% to 90%
  • Operating Temperature: 0Ëš to 40ËšC
  • Storage Temperature: -45Ëš to 60ËšC
  • Chemical Resistance: Exposed material is painted steel housing
  • Altitude: Less than 2000 m
  • Display: Green LED
  • Dimensions (L x W x H): 220 x 180 x 125 mm
  • Weight: 4.1 kg (9 pounds)
  • Pollution Degree: 2 per IEC 664 (indoor use only)
  • Installation Category: 2 per IEC 664
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Harvard Apparatus 55-2219 Syringe Pump

Harvard Apparatus 55-2219 Syringe Pump

Cambridge ID #: 18357

Specifications:

  • Sample Capacity: Depends on Alpha Units used (holds 2)
  • Speed of Ramping: Up to 3°C/sec
  • Temperature range: 0-105°C
  • Temperature accuracy: +/- 0.3°C
  • Temperature Uniformity: +/- 0.4°C
  • Input Power: 100-240 VAC, 1600 W max fitted with NEMA L6-20p plug
  • Display: 320 x 240 pixels, 256 colors
  • Memory: 1,000 typical Programs
  • Dimensions (W x D x H): 48 x 29 x 21 cm, chassis and Alpha units
  • Weight: 10.4 kg (22.9 lb)
  • Thermal Gradient Accuracy: +/- 0.3°C
  • Thermal Gradient Differential Range: 1-24°C
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KD Scientific KDS 220 (780220) Syringe Pump

KD Scientific KDS 220 (780220) Syringe Pump

Cambridge ID #: 18359

Features:

 

  • Multi-syringe holder: 1-10 syringes (10 µl - 10 ml), 1-6 syringes (20 ml - 60 ml), 1-4 syringes (100 ml - 140 ml)
  • Backlit LCD display
  • Knob locks/unlocks drive block for effortless, drag-free manual adjustment
  • Continuous dispense volume display
  • Preset volume control and automatic shut-off
  • Choice of unit selection
  • Settings can be reviewed or changed during operation
  • Stall detection
  • Last settings stored in permanent memory
  • Built-in RS232C interface for computer "daisy chaining" up to 100 pumps
  • TTL interface for foot switch, timer, relay control, outputs for run indicator, valve control

 

Specifications:

 

  • Max. No. of Syringes: 10
  • Dimensions: 11 x 9 x 5.5 in. (28 x 23 x 14 cm)
  • Weight: 9.5 lb (4.3 kg)
  • Linear Force: 40 lb (18 kg)
  • Advance Per Microstep: 0.165 micron (1/16 step)
  • Max Step Rate (1/2 Step): 1600/sec
  • Min Step Rate: 1/100 sec
  • Accuracy: ±<1%
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Cole Parmer Masterflex 7523-90 Peristaltic Pump

Cole Parmer Masterflex 7523-90 Peristaltic Pump

Cambridge Scientific ID #'s: 18164, 18303, 18165

Specifications:

  • Dimensions (L x W x H): 10.5 x 8 x 8 in (267 x 203 x 203 mm)
  • Weight: 13 lb (5.9 kg)
  • Enclosure rating: IP 33 per IEC 60529
  • Speed: 0.02 to 100 rpm
  • Display: 128 x 64 LCD w/LED Backlight
  • Supply voltage limits: 90 to 260 Vrms @ 50/60 Hz (Universal Input)
  • Operating temperature: 0° to 40°C (32° to 104°F)
  • Storage temperature: –25° to 65°C (–13° to 149°F)
  • Humidity (non-condensing): 10% to 90%
  • Altitude: Less than 2000 m
  • Pollution degree: 2
  • Chemical resistance: Exposed material is aluminum, ABS plastic and vinyl
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Cole Parmer Masterflex 7520-10 Peristaltic Pump

Cole Parmer Masterflex 7520-10 Peristaltic Pump

Cambridge ID #: 18000

Masterflex L/S series peristaltic pumps include fixed and variable speeds, providing high accuracy drives for precise flow control and dispensing. Ideal for laboratory, process and field use.

Specifications:

  • Maximum Speed: 1.6 - 100 rpm
  • Maximum Torque Output: 360 oz-in (26 kgcm)
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Watson Marlow 120S Peristaltic Pump

Watson Marlow 120S Peristaltic Pump

Cambridge ID #: 17813

Features:

The 120 Series are small, but full-featured, laboratory pumps with simple intuitive operation and four pumphead options to suit any application.

  • Flow rates 0.0001 to 36mL/min at 2 bar (30psi)
  • Compact footprint requiring minimal benchtop space: stacks two high
  • Four pumphead options, with 1-, 2-, or 3-channel options to cover any application
  • Manual operator control or manual/remote pump options
  • Superior Speed Control up to 20,0000: ±1% set point accuracy
  • IP31 ingress protection for wipedown environments
  • Maintenance-free brushless DC motor Choose from 1-, 2- or 3-channel pumps
  • Smooth wipe-down enclosure for ultimate cleanability
  • Lockable keypad to prevent tampering

Specifications:

  • Display Type: Digital
  • Maximum Pressure: 30 psi
  • Overall Height:2cm
  • Overall Length:1 in.
  • Motor Type: Brushless DC
  • Reversible: Yes
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