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.

Welch: 1-8 of 8

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Welch 1400 Vacuum Pump

Welch 1400 Vacuum Pump

Cambridge ID #: 319

DuoSeal high vacuum pumps are effective for drying using large vacuum manifolds, and are ideal for vacuum distillations, concentrating, drying, and degassing applications. The <0.001 torr ultimate pressure results in superior drying performance for the most difficult samples. Belt-drive pumps are known for their durability. Low pump rpm reduces wear and minimizes temperature to reduce oil degradation. The large oil capacity dilutes contaminants for extended service life.

Specifications:

  • Pumping speed: 9 cfm (25 L/min)
  • vacuum: 1 × 10-4 torr
  • Oil capacity: 62 qt (0.59 L)
  • Tubing needed: D. 7/16 in.
  • Exhaust and intake thread type: 3/4 -20
  • Rpm: 580
  • Dimensions: L × W × H, 17.8 × 9 × 12.61 in. (45.1 × 22.9 × 32.1 cm)
  • Weight: 58 lb (26 kg)
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Welch 1400N Vacuum Pump

Welch 1400N Vacuum Pump

Cambridge ID #: 14860

Specifications:

  • Pumping Speed Displacement: 0.9 CFM
  • Hertz: 50/60 Hz
  • Voltage: 115/220
  • Oil capacity: 0.62 qt.
  • Weight: 58 lbs.
  • Dimensions LxWxH: 18x9x13 in.
  • Intake: 3/4-20
  • Outtake: 3/4-20
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Welch 1402 Vacuum Pump

Welch 1402 Vacuum Pump

Cambridge Scientific ID #'s: 14013, 11804

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Welch 1402B-01 Duoseal Vacuum Pump

Welch 1402B-01 Duoseal Vacuum Pump

Cambridge ID #: 11271

DuoSeal Vacuum Pumps are known for their ruggedness world-wide. These rotary vane pumps have large oil reservoirs to dilute contaminants. Low pump rpm to reduces friction and wear while minimizing reservoir temperature to lessen chemical reactivity. Pump can be ordered with an optional exhaust filter to control oil mist.

Specifications:

  • Free Air Displacement cfm (l/min.) @60Hz: 5.6(160)
  • Ultimate Pressure: 1 x 10-4(0.00013)
  • Pump RPM: 525
  • Oil Capacity: 2.25(2.1)
  • Motor Horsepower (watts): 1/2(370)
  • Overall Dimensions LxWxH in. (cm):  20x12x15 (51x30.5x60)
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Welch 1405 Vacuum PumpImage Coming Soon

Welch 1405 Vacuum Pump

Cambridge ID #: 2709
This item is new to the Cambridge Scientific Used Lab Equipment Inventory. As a result, a product description is currently unavailable. For further information about this product, please inquire and a representative will contact you shortly.
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Welch 2025 Dry Vacuum PumpImage Coming Soon

Welch 2025 Dry Vacuum Pump

Cambridge Scientific ID #'s: 7633, 6352

Maintains efficiency and extends diaphragm life.

Specifications:

 

  • Free Air Displacement: 35 L/min
  • Max Pressure: 29.5 Pascal
  • Dimensions: 11.8 L x 8 W x 11 1/2 H (in)
  • Weight: 13.6 kg

 

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Welch GelMaster Gel DryerImage Coming Soon

Welch GelMaster Gel Dryer

Cambridge ID #: 7657
  • Welch Gelmaster Dryer. Two pump system, a room-temperature vapor pump/trap for condensing hot vapors and one pump to maintain a consistent vacuum.
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    Welch Gem 1.0 Vacuum PumpImage Coming Soon

    Welch Gem 1.0 Vacuum Pump

    Cambridge ID #: 13474
  • Pump RPM: 3450
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