Recent Blogs
Rock-drill Tappet Valve: Concept and Rate Interpolation
Explore a conceptual rock-drill valve alongside a two-point rate interpolation. Entered anchors do not predict real pressure, impact or pneumatic performance.
Steam Hoisting Engine Mechanism: How Mine Winders Work, Parts, Diagram, and Rope Speed Formula
How a Steam Hoisting Engine lifts ore and miners up a vertical shaft — drum sizing, rope speed, named installations, and a worked example for...
Portable Diamond Core Drill: Declared Annular Geometry and Kinematics
Portable diamond drills cut continuous core samples for mineral exploration. Learn how the bit, swivel, and feed system work, with sizing math and field examples.
Log Conveyor: Discrete Log Spacing and Rate
Explore discrete logs moving on a chain conveyor. Calculate ideal logs per minute, time between logs and mass flow from spacing, speed and average log...
Hunt Conveyor Driving Mechanism: Fixed Cam, Pawls and Chain Calculator
See a fixed cam guide rotating pawls into conveyor-chain pins. Calculate chain travel, speed, ideal faceplate torque and useful power for a six-pawl layout.
Blake-pattern Stone Crusher: Jaw Motion and Settings Calculator
Follow an eccentric, pitman and toggle-driven jaw. Calculate constrained surface stroke, open-side setting, Feed/CSS ratio and cycle period for an assumed linkage.
Steam-driven Ventilating Fan Mechanism: How Guibal Colliery Fans Work, Parts, Diagram and Uses
Steam-driven ventilating fans cleared methane and bad air from deep coal mines. See how Guibal and Waddle fans worked, plus a worked sizing example.
Rope Tramway Mechanism: How Aerial Ore Cableways Work, Parts, Capacity Formula and Uses
Rope tramway explained — how aerial cableways move ore across mountains, with formulas, capacity calculations, and real mining examples from Kuwait to Norway.
Rolling Crusher Mechanism: How Double-Roll Crushers Work, Nip Angle Diagram & Capacity Formula
Rolling Crusher explained — how double-roll crushers reduce coal, ore and aggregate, with sizing formula, gap settings, worked example and real mining applications.
Roller Coal Crusher Mechanism: How It Works, Diagram, Parts, Nip Angle Formula and Uses
Roller coal crusher explained — how double-roll crushers size run-of-mine coal, sizing formulas, gap settings, and real prep-plant examples from working mines.
Rock Drill with Balanced Piston Valve Mechanism: How It Works, Diagram, and Parts Explained
How a balanced piston valve rock drill works, with formulas, a worked penetration-rate example, and real mining applications from Sandvik and Atlas Copco rigs.
Rock Drill Mechanism Explained: How It Works, Parts, Diagram, Animation, Formula and Uses
Rock drill explained — how percussive and rotary-percussive drills break rock in mining and tunnelling, with formulas, specs, and a worked penetration example.
Revolving Pulverizing Mill and Ball-Mill Critical-Speed Calculator
Compare revolving-arm pulverizing with tumbling ball mills. Calculate ball-mill critical speed, inner-wall surface speed and bulk media volume per metre.
Revolving Hoisting Dredge and Bucket-Line Volume Calculator
Learn how a revolving clamshell hoist differs from a continuous bucket-ladder dredge. Use the bucket-line calculator to estimate delivered loose volume.
Railway Steam Shovel Mechanism: How It Works, Parts, Crowd Diagram, and Hoist Cable Calculator
How a railway steam shovel works — boiler, hoist drum, dipper stick, and crowd action sized for cutting railway grades and loading spoil cars in...
Railway Excavator: Declared Cycle-Productivity Ledger
How a Railway Excavator works in mining and trackwork — bucket geometry, swing radius, rail-bound undercarriage, and real cycle-time numbers from working fleets.
Bailey Ball-and-Pan Pulverizing Mill: Declared Batch Ledger
Learn how a pulverizing ball and pan mill grinds mineral samples to assay fineness, with sizing formulas, worked examples, and lab applications in mining.
Governor-Rope Elevator Safety Gear: Actuation Topology
Explore the governor-rope and wedge actuation chain. Calculate ideal lateral advance and guide travel from lift, guide angle and initial gap.
Ore Crusher: Blake's Fixed-and-Movable Jaw Principle
Explore Blake's fixed-and-moving jaw crusher principle. Compare representative feed and product sizes using ratio, signed change and percentage reduction.
Mining Skip: Ideal Shaft-Travel Time
Explore a guided mining skip and calculate ideal upward, downward and round-trip shaft travel times from distance, speeds and total endpoint dwell.
Miner's Safety Lamp: Historical Gauze Component Map
Explore the historical components of a flame safety lamp and calculate ideal wire-gauze pitch, clear opening, open area and cylindrical surface area.
Mast-and-Gaff Hoist: Historical Arrangement and Geometry
Explore a mast-and-gaff hoist and calculate tip reach, tip height and ideal vertical rope distance from gaff length, angle, pivot height and shaft depth.
Marine Dredge: Cutter-Suction Flow and Solids Accounting
Explore a cutter-suction dredge and calculate full-pipe slurry flow, dry-solids volume and mass flow from measured diameter, velocity and concentration.
Magnetic Ore Separator: Drum Topology and Linear Force Estimate
Explore a rotating-drum magnetic separator. Estimate local force density and force on an ideal spherical particle from field, gradient and effective susceptibility.
Link Chain Cutter: Hydraulic Blade Animation and Cylinder Calculator
See how a hydraulic chain cutter advances a moving blade toward a fixed blade. Compare ideal thrust, work and oil flow for two cylinder bores.