Mining Engineering

A closed-circuit breathing set that supplies the wearer with oxygen from a compressed cylinder rated for 200 or 300 bar working pressure, independent of the surrounding atmosphere. Used in mining departments for mine rescue and recovery training in irrespirable atmospheres.

A compact escape device that chemically generates oxygen for the wearer, allowing self-escape from a mine during fires or gas outbursts. Used to train students in emergency egress procedures and the donning and function of self-rescue equipment.

A precision measuring instrument with a digital readout for internal, external, and depth dimensions. In a mining laboratory it is used for dimensioning rock core specimens and machine components prior to testing.

An electronic balance for accurate mass determination of rock, coal, and mineral samples. Essential for sample preparation, moisture and density determinations, and general laboratory quantification.

A 50 kN capacity load cell using vibrating-wire sensing to measure loads on mine supports, props, and anchors with long-term stability. Used to teach strata-control instrumentation and load monitoring in underground workings.

An instrument installed in boreholes to monitor changes in stress within rock or coal pillars over time. Demonstrates ground-stress measurement practice and supports laboratory and field exercises in strata mechanics.

A rotating-vane instrument for measuring air velocity in mine airways and ducts. Core equipment for mine ventilation surveys, enabling students to compute air quantity from velocity and cross-sectional area.

A direct-reading digital instrument for measuring low to moderate air velocities at ventilation openings and in roadways. Complements the vane anemometer in ventilation survey practicals where instantaneous readings are required.

A photometric instrument that measures illuminance in lux at working places. Used in mine environmental engineering practicals to assess lighting standards at the face, roadways, and surface installations.

Diamond-impregnated bits for recovering intact cylindrical rock cores with a core drilling machine. Cores obtained are used for uniaxial, triaxial, and index property testing in the rock mechanics laboratory.

A laboratory machine for drilling cylindrical core specimens from rock blocks; supplied without bits. Prepares standard cores for strength and deformability testing per rock mechanics test methods.

A rebound hammer for the non-destructive estimation of rock and concrete surface hardness and correlated compressive strength. Widely used in rock mass characterization exercises and field geomechanics surveys.

A portable electronic detector that simultaneously monitors several mine gases such as methane, carbon monoxide, and oxygen deficiency. Trains students in statutory gas testing and environmental monitoring of underground workings.

An unmanned aerial vehicle package with accessories for aerial photogrammetric surveying of opencast mines, dumps, and stockpiles. Used to teach modern mine surveying, volumetric estimation, and terrain mapping workflows.

A demonstration model showing the construction of temporary and permanent ventilation stoppings used to seal off roadways and direct airflow underground. Aids classroom instruction in mine ventilation planning and control devices.

A model illustrating both under-crossing and over-crossing arrangements that carry intake and return air currents past each other without mixing. Used to explain airway layout and ventilation control structures in underground mines.

A working model of a ventilation regulator, the adjustable opening in a stopping used to control the quantity of air passing through a district. Demonstrates air distribution and resistance control in mine ventilation networks.

A working model of an airlock, the pair of doors that allows men and materials to pass between airways at different pressures without short-circuiting the ventilation. Used in ventilation engineering instruction.

A haulage-track safety device that diverts runaway tubs or mine cars off the track on gradients, protecting workers and equipment lower down the roadway. Demonstrated in mine transport and haulage safety practicals.

A suspended baulk or bar that drops across a haulage track to arrest runaway tubs on inclined roadways. Used to teach statutory runaway-prevention arrangements in rope haulage systems.

A section of deliberately offset or staggered rails installed on haulage inclines to derail and arrest runaway tubs before they gain dangerous speed. Demonstrates passive runaway-protection devices in mine transport instruction.

Track-mounted devices that apply controlled resistance to tub or mine car wheels to limit speed on gradients. Used in haulage laboratory demonstrations of speed control and safe train handling underground.

A model demonstrating the fore-poling method of advancing support, in which poles or sheets are driven ahead of the face to hold weak ground while excavation proceeds. Used in instruction on tunnelling and drivage through loose strata.

A working model of a complete ventilation district showing intake and return airways, districts, and control devices for both coal and metal mine layouts. Enables students to trace air circuits and understand district ventilation design.

A model illustrating the wedge cut pattern of blast holes used to create a free face in tunnel and drivage blasting. Supports instruction in drilling and blasting design and burn/cut geometry.

A model displaying common underground support systems such as props, bars, chocks, and roof bolts as applied at roadways and faces. Used to teach strata control practice and support selection.

A borehole-mounted roof movement indicator with a single anchor horizon that gives a visual reading of roof sag above a roadway. Used to teach routine strata monitoring and trigger-level based support management.

A roof movement indicator with two anchor horizons that distinguishes movement within the bolted height from movement above it. Demonstrates diagnostic strata monitoring in roof-bolted roadways.

A tell-tale with a rotary dial indicator that amplifies small roof displacements for easier reading from the roadway floor. Used in strata control practicals to illustrate sensitive measurement of roof dilation.

A tell-tale fitted with an automatic visual or audible alarm that triggers when roof movement exceeds a preset limit. Teaches action-level based monitoring and early warning practice in underground roadways.

A probe that senses total and static pressure to determine air velocity and velocity pressure in ducts and airways. Used with a manometer in ventilation laboratories for velocity traverses and fan duct measurements.

A hand-operated ratchet and chain device for withdrawing supports and props from goaf edges at a safe distance. Demonstrates safe prop withdrawal procedure required in caving and depillaring operations.

An instrument that measures relative displacement between anchors in a borehole or across a specimen, used to monitor strata deformation or rock strain. Supports laboratory rock testing and field strata-monitoring exercises.

A telescopic rod instrument for measuring roof-to-floor convergence in underground roadways and at longwall faces. Used to quantify closure rates and assess strata behaviour in strata control practicals.

A machine for cutting drilled rock cores to length and grinding their ends flat and parallel to specimen standards. Prepares cores for uniaxial and triaxial compression testing in the rock mechanics laboratory.

A rotating-drum apparatus that determines the slake durability index of rock, quantifying its resistance to wetting-and-drying breakdown. A standard index test for classifying weak and argillaceous rocks.

A loading fixture for the Brazilian (diametral compression) test, which determines the indirect tensile strength of rock discs. A standard rock mechanics test used in strength characterization coursework.

A portable press that loads rock cores or lumps between conical platens to determine the point load strength index. Provides a rapid field and laboratory estimate of uniaxial compressive strength for rock classification.

A magnetic device for opening the locked bonnet of a flame safety lamp for assembly, cleaning, and examination. Used in mine environment laboratories when teaching the construction and statutory testing of safety lamps.

A sealed test chamber in which known concentrations of firedamp or other gases are produced to demonstrate flame safety lamp behaviour and calibrate or verify gas detectors. Central to practicals on mine gas testing.

A multistage turbine-type pump used for dewatering, lifting water from sumps and shaft bottoms against high heads. Demonstrates mine drainage machinery, pump characteristics, and dewatering system design.

A working model showing the arrangement of decking platforms, tracks, and cage handling facilities at the shaft top and bottom. Used to teach shaft layout, tub circulation, and winding operations.

A model of keps, the retractable supports that hold the cage at rest during decking at the pit top or inset. Illustrates cage decking practice and safety arrangements in shaft winding instruction.

A set of two working models: a gate belt conveyor with loop take-up arrangement and a scraper chain conveyor as used at faces and gate roads. Demonstrates underground coal clearance and conveyor tensioning principles.

A working model of a direct rope haulage system in which a single rope hauls tubs up an incline with gravity return. Used to teach rope haulage layouts, safety devices, and their operating limits.

A working model of a mine headgear showing the headframe, sheave wheels, and rope path over the shaft. Supports instruction in winding installations and the structural arrangement above a mine shaft.

A working model demonstrating friction (Koepe) winding arrangements, including tower-mounted and ground-mounted configurations with balance ropes. Used to compare winding systems and explain friction winding principles.