Description
HM-2850.3F
Humboldt Load Frame for Asphalt and Soil Testing (Multi-Speed)
Supports the following standards: ASTM D1883, ASTM D2850, ASTM D2166, ASTM D4767, ASTM D5581, ASTM D6927, AASHTO T193, AASHTO T296, AASHTO T297, AASHTO T208, AASHTO T245, AASHTO T246, BS 1377: PART 4: 1990, BS 1377: PART 7: 1990, BS 1377: PART 8: 1990, BS 598: PART 107
The HM-2850 Multi-speed Load Frame is designed for those who want a high-quality, but simple, multi-purpose load frame without built-in data acquisition capabilities. The HM-2850 is ideal for applications where the operator is either not concerned with data acquisition; or, already has or is planning to construct their own data acquisition system. With its large 7″ color touchscreen, the HM-2850 allows the operator to precisely select any speed with five decimal accuracy within the machine’s speed range.
Humboldt offers a compatible datalogger and software that can be used to extend your machine’s capabilities. See HM-5330.3F – Data Logger, Humboldt 4-Channel Digital and Software NEXT.
Features:
- The 8″ plated platen provides roomy, stable base for test equipment
- 7″ color, touchscreen display.
- User-selectable unit change from keyboard between U.S. Standard and Metric units.
- The HM-2850 features a quiet, direct-drive, stepper motor that provides a range of loading speeds from 0.05 to 2.00000 (0.00001 to 50.80000 mm/min).
- This speed range is more than adequate for the majority of standard soil tests.
- The HM-2850 can also be used for asphalt Marshall and TSR testing and features a rapid travel speed of 2.25 in/min. for moving the platen into position quickly.
Specifications:
| Load Capacity: | 11000 lbf (50kN) |
|---|---|
| Speed Range: | 0.05 to 2.00000 inch/min. (0.00000-50.800000 mm/min) |
| Platen Size: | 8″ (203mm) |
| Platen Travel: | 4″ (100mm) |
| Clearance, Vertical: | 40″ (1000mm) |
| Clearance, Horizontal: | 11″ (279mm) |
| Voltage: | 110/220V 50/60Hz – 5.0amps |
| Dimensions: | 17 x 22 x 51″(432 x 559 x 1295mm) |
| Net Weight: | 300 lbs (136kg) |
This load frame is supplied without accessories.
Accessories for different tests can be purchased separately. See the list per test type below:
Typical CU/UU Triaxial Setup with HM-2850
| HM-2850.3F | Load Frame, Multi-Speed for CBR Testing |
|---|---|
| H-4454.020 | Load Ring with analog dial indicator, 2200lbf, 10.0kN, 1000kgf |
| H-4463 | Dial Gauge, Range: 2.000″, Division: .001″, Dia.: 2.75″, Brake: No |
| HM-4170 | Pore Pressure Transducer |
| HM-200387 | Ball Seat Adapter (3/4″-16) |
| HM-2350.3F | Single Channel Display, 120/220V 50/60Hz— 4 Digit Accuracy |
| HM-4150.3F | FlexPanel Control Panels FlexPanel, 1-Cell Control Panel, 2-150 psi (0.1 psi) |
| HM-4140.3F | 1FlexPanels – Master Control Panel FlexPanel Master Control Panel, 2-150 psi (0.1 psi) |
| HM-4187A.3F | 17 x 22 x 51″(432 x 559 x 1295mm) |
| H-1763A | High Vacuum Pump, 120V 60Hz |
| HM-4199B | Triaxial Cells for up to 2.8″ Samples Triaxial Cell, Standard Cell |
| HM-4199.20 | Triaxial Cap and Base Set, Anodized Aluminum Triaxial Cell, 2.0″ Cap and Base Set, Anodized Aluminum |
Typical Unconfined Compression Setup with HM-2850
| HM-2002 | Upper Unconfined Platen |
|---|---|
| HM-3000.10.5 | Displacement Contact Assembly |
| H-4454.005 | Load Ring 500 lbf (2.5kN) |
| H-4463 | Dial gauge 2.0″ travel 0.001″ divisions |
Typical Soil Cement Setup with HM-2850
| HM-2003E | Upper Swivel Platen |
|---|---|
| H-4454.050 | Load Ring, 5,000 lbf (25kN) |
Typical Marshall Setup for HM-2850.3F
| SKU | QTY | Name |
|---|---|---|
| HM-2850.3F | 1 | Load Frame, Multi-Speed |
| H-4454.100 | 1 | Load Ring with analog dial indicator, 11000lbf, 50.0kN, 5000kgf |
| H-1344 | 1 | Dial Flowmeter Kit for Marshall Asphalt Testing |
| H-1342 | 1 | Marshall Breaking Head, 4″ |
See the instruction manual for a complete list of accessories and capabilities.
If you have questions about Load Frames, CBR, or Marshall Testing or need help selecting equipment, don’t hesitate to contact us.
Please visit our Asphalt Marshall Testing landing page for more detailed information about Marshall Testing.
