Loading and Hauling

Factor 3 Material Weights and Swell Factors zThe weight of material is in pounds per cubic yard lb cy zUndisturbed or in place material is called a bank cubic yard BCY zLoose broken or blasted material is called a loose cubic yard LCY zThee e at o s p bet ee ba a d oose cub c ya ds s relationship between bank and loose cubic yards is sse actowell factor or

making downtime pay Schneider Electric

A typical case is a large coal miner operating an machine for the entire eight hour shift Tonnes and yield at 15 min intervals to dynamically calculate

Guidelines for Calculating Machine HOURLY RATE The

Calculate the annual costs of these then divide by total labor or machine hours for the year This will be your overhead cost per hour Once the above costs are calculated you can use the formulas and guidelines below to arrive at either a general shop hourly rate or an hourly rate based on a specific piece of equipment

The impact of mining conditions on mechanized mining

ultimately productivity which drives up the cost per ton of the operation A negative spin off of poor mining conditions is an increase in accident damage on mechanized machines Therefore an increase in severity impacts on the machine cost per hour affecting the dealer and productivity decreases and increase in accident

How to Calculate Production Capacity of a Factory

 · Total 200 machines and the working shift is 10 hours per day Total factory capacity per day is 2000 hours 200 machines 10 hours If the factory is producing only one style Shirt of SAM 25 minutes and used all 200 machines daily production capacity at 50

Performance Measurement of Mining Equipments by Utilizing OEE

The procedure to estimate OEE of shovels and trucks has also been presented via numerical example Key words OEE Equipment Utilization Mining Time Losses 0 5 hours shift 45 4 moves month 2 hours per move 120 ton Ideal production 12 minutes per trip By using data given in Table 7 and relations given in nbsp

How a focus on equipment performance productivity returns

that could shift from median to best practice would increase annual output by 6 1 million tonnes and generate cost savings of between 1 50 2 00 per tonne ie a return of 9 – 12 million per annum per machine Best practice may not be possible on all sites but apply this benefit to a substantial portion of a miners fleet and the

How to Calculate Production Capacity Bizfluent

The first step in understanding production capacity is to calculate the machine hour capacity of the factory or manufacturing plant For example say that a plant has 50 machines and workers can use the machines from 6 a m until 10 p m or for 16 hours a day

Particulate Matter PM Emission Calculations Part 2

Particulate Matter PM Emission Calculations Part 2 Mecklenburg County Land Use and Environmental Services Agency Air Quality Division –Convert from lbs hr to lbs ton for annual emission calculation Emission Rate lbs ton emission rate lbs hr production rate tons hr

Performance Measurement of Mining Equipments by Utilizing

OEE calculation for Shovel seven days per week In order to provide that every steps of equipment should be recorded so that time losses can be determined It is more appreciateable to use Performance Measurement of Mining Equipments by Utilizing OEE 98 Tab 3 Procedures for estimation of OEE Calendar time based approach

Hard rock room and pillar mining best practice industry SAIMM

definition however room and pillar mining as practised in the narrow reef tonnes Rock transport from the face area to surface was with conveyors in nine out of the ten cases with only one mine The impact of layout on equipment utilization is governed three shifts per day for five days per week and one blast per day

Basic E amp Mcalculations for a coal mining project SlideShare

15 Jul 2014 Basic calculations for hauler capacity man riding pumping Main mechanical a Hand section b Mechanised mining a Hand Section Equipment of coal solid T m3 1 5 Q Mining rate in tonnes per hour by one drum TPH duty shifts 3 3 Duration of shift in Hr 8 4 Total No of Annual shift hrs 7920 5 nbsp

How to Calculate Availability of Machinery Bizfluent

Calculate availability of machinery as one component of overall machinery productivity performance Establish the total available hours for the machine This can be represented by the total number of hours the machinery can be used in a day or shift normally 8 10 or 12 hours

Equipment selection QueensMineDesignWiki

7 Feb 2015 The equipment selection process for an underground mine design plan has up to 60 more productive in regards to tonnes per hour of material moved of shifts per year the annual LHD production can be calculated

How To Calculate Cost Per Tonne In Mining

The 596 482 tons milled yielded 1 86 per ton at a total cost of 1 18 per ton of which 0 52 was milling cost COSTS ON THE RAND The distribution of costs at Randfontein Estates Gold Mining Co which is typical of the older sand slime type of plant is shown in Table 100

Suggested Answer Syl12 Dec13 Paper 8 Institute of Cost

4 Dec 2013 04 12 2013 Issued to assembly 50 kg of A at 15 per kg vide Goods Transport Tonne kilometer Any unit that is a product of weight and for an 8 hour shift a From the following information calculate the machine hour rate for generally belonging to the Government like Mines Sand mining etc nbsp


In its simplest case if you rented a tractor with operator for 60 per hour including all fuel In this paper labor is included in the calculation of the machine rate Shallow depth utility construction where excavator sets pipe and digs only 3 or 4 hours shift Mine and quarry use with properly matched loading equipment

Machine Hours Rate Formula and Calculation With

If factory overhead is Rs 3 00 000 and total machine hours are 1 500 the machine hour rate is Rs 200 per machine hour Rs 3 00 000 ÷ 1500 hours Advantages This method can be used advantageously where the machine is the major factor in production

10 Extreme Dangerous Idiots Excavator Operator Skill

 · 10 Extreme Dangerous Idiots Excavator Operator Skill Fastest Climbing Excavator Heavy Equipment Machines Driving


1 3 1 Strip opencast mining 5 1 3 2 Terrace mining 7 1 3 3 Open pit mining 8 1 4 Underground coal mining 9 1 4 1 Room and pillar 9 1 4 2 Longwall 12 1 5 South African coal mining context 13 1 5 1 History of the South African coal mining industry 13 1 5 2 Current status of coal mining


how to calculate production on the job or estimate production off the job Machine performance is usually measured on an hourly basis in terms of machine productivity and machine owning and operating cost Optimum machine performance can be expressed as follows Lowest Possible Hourly Costs Lowest cost per ton Highest Possible

Modelling open pit shovel truck systems using the Machine Repair

mines are now routinely analysed using simulation models or off the shelf simulation used as a model for estimating truck fleet size in an open pit shovel truck system Talpac to Arena in terms of the loads per shift is shown in Figure 3 Several The above equipment suite hauls about 10 5 million tons of run of mine nbsp

U S Mining Industry Energy Bandwidth Study

2 emissions factor for the mining industry 60 800 tonnes TBtu was calculated from the fuel mix in the Miing E E Profile The fuel consumption was equated to carbon dioxide emissions using conversion factors obtained from EIA

Underground Mining Methods

method and introducing new more powerful machines are actions 1 2 DEFINITION OF TERMS tons per man shift for an efficient room and pillar mine Effi

Mining for efficiency PwC Australia

Mining equipment in Australia runs at lower annual that could shift from median to best practice provides a more precise estimate of the productivity of per tonne Once you start factoring in the size of a fleet and the number of mines in a nbsp

Excel How to Calculate Production Per Hour

 · It is used to calculate production per hour Excel Magic Trick 1078 Total Cost Based On Per Minute Charge Excel Time Values Nearest 15 Seconds


Andesite with an estimated production of about 120 000 tonnes per month What is the estimated requirement of explosives per month Assume that the SG of Andesite is 2 7 and the powder factor for andesite is 0 7 kg m3 Solution Volume of andesite to be produced 120 000 2 7 44 444 m3 Explosives required 44 444 x 0 7 31 111 kg


employment contribution of the mining industry to the South African economy is spread across five stages of the mining industry The five stages in the life of a mine are discussed in the following sections 1 2 1 Stages in the life of a mine The mining process can

Productivity in the Mining Industry Measurement and

2 6 Value added per employee key mining sub sectors 1974 75 to 2006 07 22 2 7 Capital stock per employee 23 2 8 Mining MFP labour productivity and capital labour ratio 1974 75 to 2006 07 24 2 9 MFP in selected industries 1974 75 to 2006 07 24 2 10 Coal mining MFP labour productivity and capital labour ratio

Performance Measurement of Mining Equipments by

OEE calculation for Shovel seven days per week In order to provide that every steps of equipment should be recorded so that time losses can be determined It is more appreciateable to use Performance Measurement of Mining Equipments by Utilizing OEE 98 Tab 3 Procedures for estimation of OEE Calendar time based approach

In Depth 1 TKPH – Precision Mining Support Portal

Definition Ton kilometre per hour TKPH is the measurement of the work load of a tyre and is based on the weight and speed that the tyre can handle without overheating and causing it to deteriorate prematurely A TKPH rating for a tyre is the theoretical maximum workload it can take average weight on the tyre average speed of the truck OR more specifically tonnes km h

Linear programming formulation examples

Compartment Weight capacity tonnes Space capacity cubic metres Front 10 The objective is to determine how much if any of each cargo C1 C2 C3 and able to investigate changes e g in shift patterns workers needed per day etc very easily yi amount of product i i 2 3 4 produced on machine Y per week

Joy 4FCT Flexible Conveyor Train

The 4FCT flexible conveyor train is a true continuous haulage system that eliminates haulage related bottlenecks and allows high production continuous miners to operator at their maximum capacity The increased production and efficiencies the 4FCT lends to continuous miner section of the operation improves the cost per ton performance of the

mad315 maden i̇şletme i lab

2000 kg determine both swell factor SF and of swell Section production per day 40 85 12 cuts shift 2 shifts day 980 4 tonnes day section Mine production per day 980 4 14 sections 13 725 tonnes day each machine

Productivity in mining

The mining industry spends very little on research and development for innovation compared to other sectors especially on mining and processing methods In fact the last major investment in process technology was back in the 1970s when mining was booming and the Australian mining industry invested in gold extraction process

The impact of mixed fleet hauling on mining operations at SAIMM

number of cycles a truck can do in a shift which increases productivity All these efforts will ultimately decrease the rand per tonne cost Simulating ideal nbsp

Air Change Rates in typical Rooms and Buildings

The table below indicates air change rates air changes per hour commonly used in different types of rooms and buildings Note be aware that it may be necessary to calculate required supply air based on no of persons in the room or building More information about required supply air per

Calculate Molding Clamp Tonnage for Plastic Injection

So at this point in our calculations a 200 ton machine would be a good choice Keep in mind that we need to select the right clamp tonnage machine – too much can cause problems for the parts or machine Once we have this starting point for calculating the proper clamp tonnage other factors have to be considered

Productivity Considerations for Shovels and Excavators

Even though the machines only move at 2 miles per hour they sometimes get stuck One of the ways to avoid this situation is to increase the torque and horsepower for the propel function The same motors are used for hoist and propel and a system that minimizes hoist propel switchover time would be useful as well as a cable reel Koellner

Productivity Improvement in Underground Coal Mines

India has emerged as the third largest coal producer in the world after China and USA with a 9 share of the total global coal production While the coal production from underground mining in countries like China USA and Australia are about 95 33 and 20 respectively India produces only about 15 of coal from underground mines Prasad 2009


Powder Factor Tons of rock or cubic yards per pounds of explosive Normal range 4 to 7 Shallow holes 1 to 2 External loads 3 Tons of Rock Powder Factor lbs of Explosives The higher the powder factor the lighter the load Lower powder factor means more explosives Example 1 5 tons PF of 6 25lbs BURDEN SPACING CALCULATION

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