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HUMBOLDT
Since 1909, Humboldt Mfg. Co. has been manufacturing construction material testing equipment for testing cement, asphalt, soil, aggregate & concrete. The company is headquartered in Illinois, USA. Read More
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Lab Supplies Filter
Soil TestingView all
Compaction and Density Gauge Accessories 
Moisture Testers 
Soil Auger Kits 
Soil Core Sampling Accessories 
Soil Core Sampling Kits 
Soil Grinders Accessories Stainless steel plates (No. 35) and 22 mm plates for use with soil grinders
Soil Tester Accessories 
Soil Testing Penetrometer Accessories Includes penetrometer adapter feet, resilience ball penetration tools, penetration cones, bituminous needles and 60-degree cones (1.5 and 3 cm)
Soil Testing Penetrometers Suitable for use by field personnel to check the visual classification of soils. Help verify if excavation side walls require shoring, based on OSHA cohesive soil classifications. Indicate consistency, shear strength and approximate unconfined sheer strength
Lab EquipmentView all
Bunsen Burners Used in laboratories for micro-method analysis. Have nickel-plated, die-cast alloy bases & aluminium mixing tubes. Serrated gas inlet connections provide a secure connection with mixing tubes and flame stabilizers provide steady & consistent flame
Lab Circulator Accessories Laboratory Clamps and Supports Wire support rings with formed, bright basic wire circles welded to the shank. Aluminium muff attach to support rods up to 3/4 inch (19 mm) in diameter
Laboratory Mixer Accessories Includes deluxe mixing paddles and mixing buckets & covers to pour cement smoothly & efficiently. Mixers feature a 5 litre stainless steel bowl and ASTM compliant paddles
Laboratory Mixers Include buckets, chain guards, instructions, mixing paddles; suitable for sample batch mixing in either laboratories or fields. Mix bucket runs at a speed of 60 rpm with a 1/2 hp motor and cradles securely inside an enamelled steel mixer frame
Water Baths Feature a microprocessor-based digital controller for precise temperature control (ambient temperature range of 180 degrees F at an accuracy of +/- 0.1% of input span). Dual digital display; fully insulated to maintain constant temperatures easily
Aggregate TestingView all
Sieve Accessories Includes riddle bottom pans, riddle covers, sieve bottom pans and sieve separator pans. Available in diameters of 8, 12 and 18 inches and overall depths of 2, 4, 6 and 8 inches
Sieve Shakers Heavy-duty sieve shakers capable of handling a variety of sieve sizes to help wash, sift, strain, sort and size aggregates & other dry materials. Efficiently and cost-effectively handle wet sieving. Analog / digital sieve shakers and motorised laboratory shaker units offering 1/4 and 1/3 HP power
Wire Cloth Sieves Offered in a variety of mesh sizes and wire diameters to suit testing, sampling and classification applications. Wide assortment of standard test sieves, metric sieves, wet washing sieves and more sieve styles for filtring liquids, powders and aggregate materials
Lab UtensilsView all
Laboratory Scoops Scrapers and Spoons Laboratory Tongs and Forceps Prevent moisture or oil from leading to inaccuracies in mass measurements. Feature nickel plated steel / brite steel / stainless steel construction for lifting hot crucibles from furnaces and provide protection against corrosion
Lab Ovens Heating and RefrigerationView all
Laboratory Ovens and Furnaces Provide controlled heat with minimal emissions for drying, baking, sterilizing, heat-treating, evaporating, annealing and testing. Selected models offer forced-air circulation; enable uniform distribution of heat that facilitates dehydration and evaporation
Lab InstrumentsView all
Laboratory Penetrometers Direct-reading instruments for precise penetration measurements of bituminous materials, cement, petroleum and waxes, as well as food, cosmetics & pharmaceutical products. Provided with a 5-inch diameter indicator dial, graduated in 400 divisions of 0.1 mm, corresponding to 40 mm penetration. Zero preset to eliminate errors
About Humboldt
Humboldt's extensive catalogue includes Bunsen burners, asphalt / concrete mixers, GeoGauges, laboratory ovens, soil grinders, soil testing penetrometers, sieve shakers, water baths and water level testers. The brand's water level indicators are designed for monitoring water levels in dams, wells, reservoirs bores and underground cavities. They come with a handheld wire spool, a measuring cable, an indicator module and a probe for measuring readings in centimetres and feet. These indicator modules are integrated with a power switch control (ON-OFF), red light & horn and test button for sensitivity control and remote signalling to adjust the versatile water conditions. Humbodlt laboratory ovens have precise temperature control with decreased emissions to supply heat in an optimised manner. They are ideal for evaporating, baking, annealing tasks and sterilising. These ovens have an automatic control panel, mercury thermometer, illuminated ON / OFF rocker switch and pilot light heat indicator for the user's comfort. They also have a rigid exterior and a double-walled cabinet with a perforated heat shield to absorb and radiate intense heat. These ovens are equipped with 2 adjustable shelves with a shelf capacity of 50 lb.
Things to Consider
Cross-Reference Alternatives
Humboldt's MPNs cross individual references to the equivalent Lab Safety Supply & Dynalo models. So, if you're looking for a competitor item that is either out of stock or obsolete, chances are Raptor Supplies has the equivalent Humboldt products available.
Shipping
These Humboldt products are small in size. They may require careful packaging as some items might get damaged while shipping. Hence, these items are delivered by courier shipment and air freight for minimum downtime.
Major Trade Names
EDGe
EDGe is a non-nuclear, soil density, field and in-lab gauge to measure the density and moisture content of materials like aggregate, soil aggregate, compacted base or natural soil. It is used for dete...Read more
Tru-Wate
Tru-Wate mud balance is a device used to measure the density of a fluid sample (cement slurry and similar fluids) accurately. The density of the fluid sample can be measured within a fixed volume unde...Read more
Frequently Asked Questions
How to install laboratory ovens and furnaces?
- Choose a suitable location for the oven or furnace, considering ventilation and access to utilities.
- Carefully review the manufacturer's instructions for installation guidance.
- Ensure the electrical power supply meets the specified requirements.
- Verify proper ventilation to dissipate heat and fumes.
- Consult a qualified technician to connect gas or compressed air supply lines if needed.
- Position and level the oven or furnace accurately.
- Install necessary safety equipment as per manufacturer recommendations.
- Follow the manufacturer's instructions to start up and calibrate the unit.
- Familiarise yourself with operational guidelines and safety protocols.
- Provide training to personnel and comply with regulatory standards.
What is the difference between a bunsen burner and a general purpose burner?
Bunsen burner and general-purpose burner serve heating purposes but differ in several aspects. Bunsen burner features a vertical metal tube with an adjustable air intake and gas nozzle. It produces a non-luminous Bunsen flame characterized by a blue inner cone and a less intense outer flame, which is relatively cooler. Primarily used in laboratories, Bunsen burners offer precise control for heating, sterilization, and specific experiments. In contrast, general-purpose burners encompass a broader category with various designs and flame characteristics. They find applications beyond laboratories, offering versatility for heating, melting, soldering, flame tests, and combustion reactions in diverse settings. The adjustability of Bunsen burners, including airflow control, allows users to regulate flame height and oxygen supply. General-purpose burners may vary in adjustability based on their design and intended use. Overall, while the Bunsen burner provides controlled and consistent flames in laboratory settings, general-purpose burners offer flexibility for heating applications in various environments.
What factors should be considered while choosing gravity-convection ovens?
- Temperature Range
- Chamber Size and Capacity
- Construction material
- Controls and Programmability
- Safety features
- Energy efficiency