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Introduction Applications The HM-2800 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-2800 is ideal for applications where the operator either is not concerned with data acquisition; or, already has or is planning to construct their own data acquisition system.
Machine Specifications Specifications Dimensions (l x w x h) 17 x 22 x 51 inch (432 x 559 x 1295mm) Platen Travel 3 inches (76mm) Max. Net Weight 206 lbs. (94kg) Shipping Weight 300 lbs. (660kg) Speed Range 0 - 1.99 inch/min (0 - 50.5 mm/min) Load Capacity 11000 lbf (50 kN) Vertical Clearance 32 inch (812mm) Max. Horizontal Clearance 11 inch (2 79mm) Voltage 120 VAC 50/60HZ 220 VAC 50/60HZ Current 9 Amps @ 125V 4.5 Amps @250V Covers: CBR, UU, CU, CD, UC, Marshall and Hveem Tests.
IMPORTANT NOTICE The information contained herein is supplied without representation or warranty of any kind. Humboldt MFG. CO. therefore assumes no responsibility and shall have no liability, consequential or otherwise, of any kind arising from the use of the described equipment contained in this manual.
Electrical Connections Place unit on a flat smooth surface and use leveling feet (supplied) and a bubble level to ensure that the unit is level side-to-side and back-tofront. Electrical Connections The HM-2800 arrives ready for operation. Attach the supplied IEC electrical cord to the machine and plug into a standard wall receptacle for use in the United States. The 220 50/60Hz variation of the HM-2800, the HM-2800.
Operation 1 Control Panel An On-Off rocker switch on the front right side on the machine is the power switch and is illuminated when in the On or I position. The control panel is situated on the front left hand side of the machine base. A backlit LCD displays the speed and units in either in/min or mm/min. A membrane key pad enables setting the speeds and units and control of machine travel.
Load Ring When a load ring is used it can be attached directly to the cross-beam using the 3/4-16 x 3” long bolt. Maximum Load This Compression and Testing Machine is rated a 10,000 lbf (44kn). Accuracy of Platen Speeds The indicated speeds are based on zero load conditions and will be maintained within +/- 5%. The actual motor speed will be maintained to +/- 1%. These are not closing gap speeds. The speeds used in the various test are, in fact, the closing gap speed, i.e.
ASTM D2850 ASTM D4767 Para. 5.2 UU Unconsolidated Undrained quick triaxial, 2.8" UC Unconsolidated Undrained triaxial for cohesive soil ASTM D6927 & 5581; AASHTO T245 Marshall/TSR ASTM D2850 ASTM D4767 Para. 5.2 UC Consolidated Undrained, 1.4" UU Unconsolidated Undrained quick triaxial, 1.4" ASTM D2166 Para. 7.1 Unconfined Cohesive Soil ASTM D1633 BS 1377, Part 7 UU Triaxial Unconsolidated Undrained, 1" ASTM D1883, D4429 (field) AASHTO T193 ASTM D2850 Para. 5.1 & 7.
Typical Test Setups for the HM-2800 The charts below list the parts necessary to perform these standard tests. Typical CU Triaxial, 1-Cell Setup using HM-2800 Part # Qty Description HM-2800 1 Multi-Speed Load Frame HM-4150 1 FlexPanel I (3-Burette Panel) HM-4199B 1 Triaxial Cell, Brass Fittings HM-4199.XX 1 Top Cap & Base Pedestal 2.8" H-4454.020 1 Load Ring 2,200 lbf (10 kN) H-4463 1 Dial Gauge 2.0" travel, 0.
Typical Test Setups for the HM-2800 (cont.) Typical Soil Cement Setup using HM-2800 Part # Qty Description HM-2800 1 Multi-Speed Load Frame HM-2003E 1 Upper Swivel Platen HM-4454.050 1 Load Ring 5,000 lbf (25 kN) Typical Triaxial Sample Prep Items Part # Qty Description HM-4180.XX 1 Membranes, 12/pk HM-4181.XX 1 Membrane Stretcher HM-4182.XX 1 O-Rings, 12/pk HM-4184.XX 2 Porous Stone HM-4187E 1 De-Airing Tank, 6 Liter, 110V HM-3847.XX 1 Split Miter Box HM-4189.
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Warranty Humboldt Mfg. Co. warrants its products to be free from defects in material or workmanship. The exclusive remedy for this warranty is Humboldt Mfg. Co., factory replacement of any part or parts of such product, for the warranty of this product please refer to Humboldt Mfg. Co. catalog on Terms and Conditions of Sale. The purchaser is responsible for the transportation charges. Humboldt Mfg. Co.
