Scientific

Scientific

Scientific research encompasses the systematic investigation and study of the natural world through observation, experimentation, and analysis. Scientists use the scientific method to formulate hypotheses, conduct experiments, and draw conclusions based on empirical evidence. This rigorous process aims to uncover new knowledge, solve problems, and expand our understanding of the universe. Scientific disciplines include biology, chemistry, physics, astronomy, and more, each with its unique methodologies and principles. By adhering to strict standards of objectivity, reproducibility, and peer review, the scientific community ensures the credibility and validity of its findings. In summary, scientific inquiry drives progress and innovation across various fields, shaping our modern world.

  • Lindberg 54434 Hevi-Duty Tube Furnace front-left angle view showing blue front panel with tube opening and open top revealing internal components Lindberg 54434 Hevi-Duty Tube Furnace left side view showing blue panel, circular tube opening, and loose wiring leads hanging from base

    Lindberg 54434 Hevi-Duty Tube Furnace 1100°C 5000W 100V 50/60Hz Benchtop

    Lindberg

    $850.00
    Was: $1,700.00
    Lindberg 54434 Hevi-Duty Tube Furnace 1100°C 5000W 100V 50/60Hz Benchtop Benchtop tube furnace designed for laboratory heat treatment, annealing, sintering, and materials research. Features a 20-inch tube with 3.5-inch outer diameter, compatible with...
    53268
    SKU:
    53268
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    85.00 LBS
    Brand:
    Lindberg
    Model:
    54434
    MPN:
    54434
    SKU:
    53268
    Condition:
    Used – Inspected
    Seller Notes:
    Includes temperature probe. Ceramic end plugs show cracking from high-temperature use. Loose wiring leads present. Not bench-tested.
    Form Factor:
    Benchtop
    Country of Manufacture:
    United States
    Power Requirements:
    100V, 50/60Hz
    Voltage Rating:
    100V
    Power Rating:
    5000W
    Frequency:
    50/60 Hz
    Maximum Temperature:
    1100°C
    Tube Length:
    20 inches
    Tube Diameter:
    3.5 inches
    Application / Use Case:
    Heat treatment, annealing, sintering, materials research
    Furnace Type:
    Tube Furnace
    Accessories Included:
    Temperature probe
    Compatible With:
    Standard 3.5" OD process tubes (quartz or alumina)
    Condition Notes:
    This Lindberg 54434 benchtop tube furnace has been visually inspected and comes with the temperature probe. The ceramic end plugs at both tube openings display cracking and chipping from previous high-temperature service.
    $850.00
    Was: $1,700.00
  • Lindberg 54341 detail of tube diameter and ceramic insulation Lindberg 54341 furnace thermal chamber and ceramic tube opening

    Lindberg 54341 Hevi-Duty Horizontal Tube Furnace 1010°F 230V 24" x 2.5"

    Lindberg

    $900.00
    Was: $1,800.00
    Lindberg 54341 Hevi-Duty Horizontal Tube Furnace 1010°F 230V 24" x 2.5"This is a benchtop horizontal tube furnace designed for controlled heating in laboratory and industrial applications. The unit features a 24-inch ceramic tube with a 2.5-inch maximum...
    53267
    SKU:
    53267
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    105.00 LBS
    Brand:
    Lindberg
    Model:
    54341
    MPN:
    54341
    SKU:
    53267
    Condition:
    Used – Pulled from Working Environment
    Seller Notes:
    Includes attached Type K thermocouple with yellow connector
    Form Factor:
    Benchtop
    Furnace Type:
    Horizontal Tube Furnace
    Max Temperature:
    1010°F
    Tube Length:
    24 inches
    Tube Diameter (Max):
    2.5 inches
    Power Requirements:
    230V, Single-Phase, AC
    Heating Element:
    Resistance wire coil elements, radial arrangement
    Thermocouple Type:
    Type K (yellow connector, included)
    Application / Use Case:
    Heat treatment, sintering, annealing, materials testing
    Country of Manufacture:
    USA
    Manufacturer Division:
    Sola Basic Industries, Watertown, WI
    Condition Notes:
    This Lindberg 54341 Hevi-Duty horizontal tube furnace is in used condition and has not been powered up at our facility. It shows general surface wear consistent with age and previous service use.
    Manufacturer:
    Sola Basic Industries
    Maximum Temperature:
    1010°F
    Tube Diameter:
    2.5 inches maximum
    Heating Element Type:
    Resistance wire coil, radial arrangement
    $900.00
    Was: $1,800.00
  • Optical Engineering laser beam dump set — two absorptive panels seated in open wooden carry case with foam lining Optical Engineering beam dump set — one panel removed from wooden case, showing absorptive surface and black frame

    Optical Engineering Laser Beam Dump Set Absorptive Panels Opt-Eng Lab Optics

    Optical Engineering

    $225.00
    Was: $450.00
    Optical Engineering Laser Beam Dump Set Absorptive Panels Opt-Eng Lab Optics Laser beam dump set designed to absorb laser energy and suppress stray light in optical laboratory environments. Features non-reflective absorptive panels mounted in rigid black...
    53235
    SKU:
    53235
    Availability:
    Usually ships within 1–2 business days.
    Weight:
    8.00 LBS
    Brand:
    Optical Engineering
    Model:
    Opt-Eng Laser Beam Dump Set
    SKU:
    53235
    Condition:
    As-Is / For Parts or Not Working
    Seller Notes:
    Includes one beam dump panel and wooden carry case; missing parts — sold AS-IS
    Form Factor:
    Panel / Benchtop
    Application / Use Case:
    Laser energy absorption, stray light suppression, laser optics lab
    Panel Type:
    Absorptive, non-reflective surface
    Frame Material:
    Rigid black anodized frame
    Case Type:
    Wooden hinged carry case with foam lining
    Quantity of Panels:
    Set — see listing photos for current count
    Compatible With:
    Laser optics benches, optical labs, research setups
    Power Requirements:
    None — passive optical component
    Condition Notes:
    Optical Engineering Laser Beam Dump Set Absorptive Panels in used condition. This set includes a wooden hinged carry case with foam lining and absorptive panel(s) with black frame rails.
    $225.00
    Was: $450.00
  • CVI Laser LPFS-IR-2.00 infrared long pass filter set – four 2-inch filters removed from wooden case displayed below open box CVI Laser LPFS-IR-2.00 filter set – four filters seated in blue foam slots inside open wooden storage case

    CVI Laser LPFS-IR-2.00 Infrared Long Pass Filter Set 2" 4-Filter IR Optics

    CVI Laser Corp.

    $300.00
    Was: $600.00
    CVI Laser LPFS-IR-2.00 Infrared Long Pass Filter Set 2" 4-Filter IR Optics Set of four 2-inch diameter infrared long pass filters mounted in an original wooden storage case. These filters transmit infrared wavelengths above a specified cutoff while...
    53234
    SKU:
    53234
    Availability:
    Usually ships within 1–2 business days.
    Weight:
    5.00 LBS
    Brand:
    CVI Laser Corporation
    Model:
    LPFS-IR-2.00
    MPN:
    LPFS-IR-2.00
    SKU:
    53234
    Condition:
    As-Is / For Parts or Not Working
    Seller Notes:
    Set of 4 IR long pass filters in original wooden case; sold as-is
    Filter Type:
    Long Pass Infrared (IR)
    Filter Diameter:
    2.00 inch (50.8 mm)
    Number of Filters:
    4
    Lot Numbers:
    1200, 1300, 1400, 1500
    Spectral Range:
    Infrared (IR)
    Application:
    Spectroscopy, Imaging, Beam Control
    Form Factor:
    Individual mounted filters in wooden storage case
    Custom Order Reference:
    PO 035676, Swales & Associates
    Country of Manufacture:
    United States
    Compatible With:
    Standard 2-inch optical mounts and filter holders
    Condition Notes:
    The CVI Laser LPFS-IR-2.00 Infrared Long Pass Filter Set is a used optical component set in working condition. This four-filter set (lot numbers 1200, 1300, 1400, and 1500) shows visible wear on the optical surfaces including light scratches and
    $300.00
    Was: $600.00
  • CVI Laser FS10-NiR-1.00 NIR interference filter set in open wood storage case with all six 1-inch filters laid out in front Six CVI Laser NIR bandpass filters in foam-lined wood case showing individual filter slots labeled F10-750 through F10-1000

    CVI Laser FS10-NiR-1.00 NIR Interference Filter Set 750-1000nm 1" 6 Filters

    CVI Laser Corp.

    $700.00
    Was: $1,400.00
    CVI Laser FS10-NiR-1.00 NIR Interference Filter Set 750-1000nm 1" 6 Filters A set of six near-infrared bandpass interference filters manufactured by CVI Laser Corporation. Each filter has a 10 nm bandwidth and 1-inch diameter, designed for use in...
    53233
    SKU:
    53233
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    3.00 LBS
    Brand:
    CVI Laser Corporation
    Model:
    FS10-NiR-1.00
    MPN:
    FS10-NiR-1.00
    SKU:
    53233
    Condition:
    As-Is / For Parts or Not Working
    Seller Notes:
    6 NIR interference filters in original CVI wood case; sold as-is, filters show wear
    Form Factor:
    Optical Filter Set in Wood Storage Case
    Filter Type:
    Bandpass Interference Filter
    Spectral Range:
    750 nm to 1000 nm
    Bandwidth (FWHM):
    10 nm per filter
    Diameter:
    1.00 inch (25.4 mm)
    Number of Filters:
    6
    Filter Models Included:
    F10-750, F10-800, F10-850, F10-900, F10-950, F10-1000
    Spectral Region:
    Near-Infrared (NIR)
    Application:
    Spectroscopy, Imaging, Laser-Based Instrumentation
    Compatible With:
    Standard 1-inch optical mounts and filter holders
    Country of Manufacture:
    USA
    Coating Type:
    NIR Anti-Reflection / Interference Coating
    Storage Case:
    Original CVI Laser Corporation wood storage case included
    Condition Notes:
    CVI Laser FS10-NiR-1.00 NIR Interference Filter Set (750-1000nm, 1", 6 filters). This used set shows visible cosmetic wear including surface scratches, coating marks, and minor discoloration across multiple filter elements, consistent with
    $700.00
    Was: $1,400.00
  • ISO-K high vacuum centering ring seal, 304 stainless steel with brown Viton O-ring, top view showing full ring face and bore ISO-K 304 SS high vacuum centering ring, angled top view showing stainless flange lip, Viton O-ring groove, and retaining clip detail

    ISO-K Flange Seal 304 SS High Vacuum Centering Ring 3-3/4" Bore 5.15" OD

    Stainless Steel

    $17.50
    Was: $40.00
    ISO-K Flange Seal 304 SS High Vacuum Centering Ring 3-3/4" Bore 5.15" OD This is a 304 stainless steel ISO-K high vacuum centering ring seal with a brown Viton (FKM) O-ring. The centering ring seats between two mating ISO-K flanges to provide a...
    53225
    SKU:
    53225
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    2.00 LBS
    Brand:
    Unbranded
    Type:
    ISO-K High Vacuum Centering Ring Seal
    Material:
    304 Stainless Steel
    O-Ring Material:
    Viton (FKM)
    Bore Size:
    3-3/4" (3.75")
    Flange OD:
    5.15"
    Flange Standard:
    ISO-K
    Compatible Flange Size:
    ISO-K 160 / ISO 200 (approx.)
    Vacuum Level:
    High Vacuum
    Application:
    Vacuum Deposition, Roughing Pump Lines, Turbo Pump Systems
    SKU:
    53225
    Condition:
    Used – Pulled from Working Environment
    Seller Notes:
    Centering ring with Viton O-ring; removed from vacuum deposition system.
    Country/Region of Manufacture:
    Unknown
    Condition Notes:
    This 304 stainless steel ISO-K high vacuum centering ring seal was removed from a large vacuum deposition system that was decommissioned when the facility closed operations.
    $17.50
    Was: $40.00
  • Stainless Steel 304 high vacuum 90-degree extended elbow pipe with ISO-K flanges – front-left isometric view showing full elbow profile SS 304 high vacuum 90-degree elbow pipe – right-side view showing extended leg and both ISO-K flange ends with visible surface brushing

    SS 304 High Vacuum Elbow Pipe 90 Degree Extended 10" ISO-K Flange 5.15" OD

    Stainless Steel

    $100.00
    Was: $200.00
    SS 304 High Vacuum Elbow Pipe 90 Degree Extended 10" ISO-K Flange 5.15" OD This is a stainless steel 304 high vacuum elbow pipe with a 90-degree extended geometry and ISO-K flanges on both ends. The extended leg measures approximately 10 inches,...
    53224
    SKU:
    53224
    Availability:
    Usually ships within 1-2 business days.
    Weight:
    10.00 LBS
    Brand:
    Unbranded
    Type:
    High Vacuum Elbow Pipe
    Material:
    Stainless Steel 304
    Flange Standard:
    ISO-K
    Flange OD:
    5.15"
    Elbow Angle:
    90 Degree
    Extended Leg Length:
    10 inches
    Bore / Inner Diameter:
    Approx. 4" (visible in measurement photos)
    Vacuum Compatibility:
    High Vacuum
    Connection Type:
    ISO-K Flange (both ends)
    SKU:
    53224
    Condition:
    Used – Pulled from Working Environment
    Country/Region of Manufacture:
    Unknown
    Seller Notes:
    90-degree extended vacuum elbow pipe only; no clamps or seals included.
    Condition Notes:
    This Stainless Steel 304 High Vacuum 90-Degree Extended Elbow Pipe has been inspected and is in good used condition. It was pulled from a working vacuum system where it was actively in service.
    $100.00
    Was: $200.00
  • Stainless Steel 304 high vacuum 45-degree ISO-K elbow fitting — side profile showing both flanged ends and polished exterior SS 304 high vacuum 45-degree ISO-K elbow — angled three-quarter view showing interior bore and flange sealing surfaces

    SS 304 High Vacuum 45° Elbow ISO-K Flange 5.15" Bore Roughing Pump Line

    Stainless Steel

    $175.00
    Was: $350.00
    SS 304 High Vacuum 45° Elbow ISO-K Flange 5.15" Bore Roughing Pump Line This is a Stainless Steel 304 high vacuum 45-degree elbow fitting with ISO-K flanges on both ends. The bore measures approximately 5.15 inches in diameter (visible in the...
    53223
    SKU:
    53223
    Availability:
    Usually ships within 1–2 business days.
    Weight:
    7.00 LBS
    Brand:
    Unbranded
    Type:
    High Vacuum Elbow Fitting
    Material:
    Stainless Steel 304
    Flange Standard:
    ISO-K (ISO Large Flange)
    Flange Size:
    5.15" (approx. ISO-K 160)
    Bore Diameter:
    Approx. 5.15 inches (measured)
    Elbow Angle:
    45 Degrees
    Connection Type:
    ISO-K Flange (both ends)
    Number of Flanges:
    2
    Application:
    High Vacuum Systems, Roughing Pump Lines, Turbo Pump Lines
    Compatible With:
    Roughing pumps, turbo pumps, vacuum deposition systems
    Vacuum System Type:
    High Vacuum
    SKU:
    53223
    Condition:
    Used – Pulled from Working Environment
    Seller Notes:
    Pulled from vacuum deposition system; roughing/turbo pump line
    Condition Notes:
    This Stainless Steel 304 High Vacuum 45° ISO-K Elbow was pulled from a large vacuum deposition system that was decommissioned when the facility closed operations.
    $175.00
    Was: $350.00