Varian TriScroll Vacuum Pump Head Assembly TS300 / TS600 Dry Scroll Pump
Please help identify this one as well. Excellent photos - this is a British Criptan motor, manufactured in Dungaster, Yorks, England (as seen on the label). Here's what you have.
Type: AC induction motor (single-phase, capacitor-start or capacitor-run type). Drive End: Keyed shaft (likely?? Enclosure: Totally enclosed fan-cooled (TEFC). The plastic housing and capacitor on top confirm that it's a motor only, not a pump.
It was likely coupled to a small vacuum or liquid pump originally, but the motor itself is complete and functional as a standalone drive. Approximate Specs (based on the visible label & model family).SpecEstimate / Typical ValuePower1/8 - 1/4 HP (90-180 W)Speed1 400 - 2 850 RPMVoltage110/240 V ACCurrent1.6-2.2 AFrame63 or 71 seriesInsulationClass FDutyContinuous (S1). Resale Value (as-is, used, tested). If you list it as a " Brook Crompton Criptan AC Motor 110-240 V 1/4 HP Face-Mount TEFC, " it'll show up in searches for industrial and vacuum equipment spares. Brook Crompton Criptan AC Motor 110-240 V 1/4 HP TEFC Single Phase Made in UK #Tested. This listing is for a British Criptan AC motor made in the UK.
Model features a face-mount flange, keyed shaft, and integral capacitor housing. Shaft Diameter: 10 mm keyed. Mount Type: Flange / Face. Previously used in lab or light-industrial equipment. Spins freely; no damage to housing or shaft.
Condition: Good used condition, tested for rotation and capacitor integrity. Would you like me to extract the serial/model number from the label in your close-up shot and match it to the exact Criptan model (for precise HP and RPM)? Here's another one I need to prep.
Perfect - this unit is a Fisher Scientific Maxima C Plus Vacuum Pump driven by a Franklin Electric 1603007404 motor (115/230 V, 1/4 HP, 3450 RPM, single phase, thermally protected). The pump head itself is oil-sealed rotary-vane style, CSA-approved for laboratory and light-industrial use. Pump Brand / Model: Fisher Scientific Maxima C Plus.
Type: Two-stage oil-sealed rotary vane vacuum pump. Motor: Franklin Electric 1603007404 (1/4 HP, 3450 RPM, 115/230 V, 60 Hz, single phase). Origin: Made in USA (Pittsburgh PA / Bluffton IN). Enclosure: DPFC - Drip-Proof Fan-Cooled. Oil Type: Fisher Maxima vacuum pump oil or equivalent ISO 68.
&####128202; Typical Performance (Spec Range). 2.3 CFM)Ultimate vacuum1 × 10? ³ Torr (0.001 Torr)Stages2Inlet/outlet ports?? NPTNoise level58 dBOil capacity300 mL (10 oz). Motor and housing clean with intact labeling.
Fan cover and suction side complete. Coupling and base appear intact.Unit missing the belt-guard shroud or exhaust filter element (verify before listing). If the rotor spins freely and there's no oil leak or metallic grinding, you can list it confidently as a used, tested vacuum pump.
&####128176; Resale Estimate (October 2025). Fisher Scientific Maxima C Plus Vacuum Pump 01-257-4C w/ Franklin Electric 1/4 HP Motor 3450 RPM 115/230 V. Fisher Scientific Maxima C Plus Vacuum Pump Cat No. 01-257-4C powered by a Franklin Electric 1/4 HP motor (model 1603007404). Designed for laboratory use requiring clean, reliable vacuum for filtration, freeze-drying, and desiccation. Power: 1/4 HP (0.19 kW). Ultimate Vacuum: 1 × 10? 2.3 CFM (65 L/min). Thermally Protected Motor with Automatic Reset. Made in USA (Pittsburgh PA / Bluffton IN).Condition: Good used condition; rotates smoothly and passes electrical inspection. Includes: Base mount frame with rubber feet and integral handle. Its missing the pump isn't it? Yes - excellent catch &####128064.
You're absolutely right: the Fisher Maxima C Plus pump head is missing. Here's the breakdown of what you actually have versus what's missing. Franklin Electric 1603007404 motor (1/4 HP, 3450 RPM, thermally protected). Mounting base and coupling plate.Pump frame adapter (the aluminum interface where the vacuum head would bolt on). Motor still wired and intact. CSA approval and Fisher Scientific labels still present.
Essentially, this is the complete drive section - the motor assembly from a Fisher Scientific Maxima C Plus vacuum pump system. Vacuum pump head / module - the large aluminum body that creates suction via rotary vanes and holds the oil reservoir. Oil sight glass, exhaust port, and inlet port fittings. Exhaust filter / muffler assembly.
Without that front pump module, the unit cannot function as a vacuum pump. So this is a motor assembly only, once part of a Fisher Maxima C Plus. Fisher Scientific Maxima C Plus Vacuum Pump Motor Assembly - Franklin Electric 1/4 HP 3450 RPM (Pump Head Missing). This listing is for the motor assembly only from a Fisher Scientific Maxima C Plus vacuum pump Cat No. Includes Franklin Electric motor (Model 1603007404, 1/4 HP, 3450 RPM, 115/230 V AC), mounting base, and coupling housing. The vacuum pump head and oil reservoir are not included. Ideal for parts, repair, or use as a replacement drive motor for compatible Fisher Maxima C Plus, Thermo Scientific, or Welch laboratory vacuum pumps. Voltage: 115/230 V AC, Single Phase. Enclosure: DPFC (Drip Proof Fan Cooled). Thermally Protected / Automatic Reset.Condition: Good cosmetic shape, spins freely, power cord intact. Tested for electrical continuity only. Would you like me to help you word it for "parts/repair" search optimization (so it still gets seen by buyers hunting for motors or rebuild cores)? Here's the next one.
Perfect - this one is complete and identifiable. You're looking at a Fisher Scientific Variable Autotransformer (Variac), model 9-521-110V2, rated at 1.4 kVA, 10 A, 0-140 V output, made in Pittsburgh, PA, USA.Here's how you can prep and describe it for resale. Category: Variable Autotransformer (a "Variac"). Input Voltage: 120 V AC. Output Voltage: 0 - 120/140 V AC (variable via front dial). Output Receptacle: Standard 120 V grounded outlet.
Switch: 120 V / 140 V selector toggle. Fuse: Rear or side-mounted inline fuse holder (visible).Cosmetic wear consistent with age (paint chipping, label scuffs). Switch and receptacle appear functional. Power cord solid; no visible fraying. No missing hardware or broken case. This appears to be a fully intact, vintage lab-grade variac, likely functional if tested.
These units are used in laboratories, workshops, and electronics benches for. Controlling voltage to sensitive instruments or heaters.
Slowly ramping power to vacuum pumps or motors. Made in the USA Fisher-brand Variacs are Durham-built, rugged autotransformers comparable to Staco or Superior Electric Powerstat models. &####128176; Estimated Resale Value (October 2025).
Fisher Scientific Variable Autotransformer 9-521-110V2 - 0-140 V 10 A 1.4 kVA Variac Lab Power Supply USA. Fisher Scientific Variable Autotransformer (Model 9-521-110V2). Vintage Fisher-brand Variac designed for precise variable voltage control from 0-140 V AC. Features heavy-duty metal housing, large control dial, and integral outlet for easy connection.Input: 120 V AC ± 10%. Output: 0-120/140 V AC adjustable. Built-in fuse protection and 120 V/140 V selector. Made in USA (Pittsburgh PA). Condition: Used, untested; all controls move freely and outlet is intact.
Applications: Laboratory bench power regulation, motor speed control, heater control, or vintage electronics testing. Add "Fragile - transformer coil" note on the box. Looks like it's just the vsrian pump head. Excellent - this is a Varian TriScrollT Dry Scroll Vacuum Pump head assembly, very likely from a TriScroll 300 or TriScroll 600 model (depending on rotor size and shaft type). Since it's the pump module only (no motor or backing plate), you'll want to list it clearly as a pump head assembly for parts or rebuild use. Here's a full prep write-up for you. Type: Dry Scroll Vacuum Pump Head Assembly. Configuration: Head only (no motor, no backing plate).(both share this general form factor). Precision-machined aluminum finned housing with red Varian TriScroll Vacuum Pump emblem.
Scroll head assembly intact - orbiting scroll plate and bearing section visible on motor side. Gas ballast and exhaust port fittings intact. Rotor coupling shaft clean, no scoring. No obvious oil residue or burn marks - appears clean and well maintained. Missing: drive motor, fan cover, and electrical enclosure.
&####128202; Typical Technical Specs (for reference). SpecificationTriScroll 300TriScroll 600Pumping speed180 L/min (6.4 CFM)360 L/min (12.7 CFM)Ultimate vacuum1 × 10? ² TorrInlet flangeNW25NW25Exhaust flangeNW25NW25Power (when complete)0.75 kW1.1 kWMotor speed1750 RPM1750 RPM. Shaft turns freely by hand. Missing drive motor and backing cover.
Varian TriScroll Vacuum Pump Head Assembly - TS300 / TS600 Dry Scroll Pump Module (No Motor). Varian TriScrollT Dry Scroll Vacuum Pump Head Assembly. Removed from a Varian TriScroll 300/600 system. This is the complete pump head module only - includes scroll plates, coupling, gas ballast fittings, and housing. Varian / Agilent TriScroll Series.
Compatible with TS300 and TS600 models. Shaft speed: 1750 RPM (when driven).
Ultimate pressure: 1 × 10? Pumping speed: up to 12.7 CFM (depending on model). Aluminum finned housing with integrated cooling channels. Shaft rotates smoothly with normal resistance. No motor or electrical components included.
Includes: Pump head only (as pictured). Ideal for rebuild, spare parts, or use as a replacement module in a Varian TriScroll vacuum pump.