### Chapter 3: Excavating and Lifting

Excavator SIZES CHART - Excavator Lifting Capacity Chart

Get a quote### Technical Specifications for 320 Hydraulic Excavators

Oct 25, 2017 · Hydraulic System Main System – Maximum Flow – Implement 429 L/min (214.5 × 2 pumps) 113 gal/min (56.5 × 2 pumps) Maximum Pressure – Equipment – Normal 35 000 kPa 5,075 psi Maximum Pressure – Equipment – Heavy Lift Mode/Auto Dig Boost 38 000 kPa 5,510 psi Maximum Pressure – Travel 34 300 kPa 4,974 psi

Get a quote### Solved: Chapter 3 Problem 1P Solution | Construction

Here, C is the number of cycles per hour, S is the swing-depth factor, V is the heaped bucket volume, B is the bucket fill factor, and E is the job efficiency. Compute the depth of cut by using the following relation: Substitute for actual depth and for optimum depth.

Get a quote### Chapter 3

Cycle output = 250 cycles/60 min (Table 3-3) Depth of cut (% of maximum)= (4.3 / 6.1) x 100= 70% Swing-depth factor = 1.00 (Table 3-4) Bucket volume = 0.57 LCM Bucket fill factor = 0.95 Job efficiency = 50/60 = 0.833 Production = 250 × 1.00 × 0.57 × 0.95 × 0.833 = 113 LCM/h 36

Get a quote### Investigation of Excavator Performance Factors in an Open

3.5. Determination of Shift Availability Index for Excavators. If d fi are the dispatch frequencies of excavators during a given shift, where i = 1, 2, 3, ・・・, N ex, is the number of excavators available for dispatch in a selected period (say 1 month), then the total number of dispatch can be determined as per Equation (2): (2) In a selected period of interest, if there were j shifts

Get a quote### An eco-approach to optimise efficiency and productivity of

Jan 20, 2016 · The attributes that affect theoretical cycle time (f swing and f depth) are considered separately. (f swing) [−] as applied in Equation, is the slew angle coefficient that describes the amount of rotation of a hydraulic excavator above the tracks or wheels, involved in a duty, as shown in Equation . Based on OEMs performance handbooks, it is

Get a quote### Productivity Considerations for Shovels and Excavators

Using a Terex RH 200 as an example, Ahrenkiel explained that the average cycle time for the excavator was 29.5 seconds. The average swing time for an empty bucket is 7.5 seconds (25%). The machine needs 12 seconds (41%) to fill the bucket. The average swing time for the full bucket is 7 seconds (24%).

Get a quote### Table 1: Factors for depth of cut and angle of swing

optimum depth angle of swing (degree) 30 45 60 75 90 120 150 180 20 1.06 0.99 0.94 0.9 0.87 0.81 0.75 0.7 40 1.17 1.08 1.02 0.97 0.93 0.85 0.78 0.72 60 1.24 1.13 1.06 1.01 0.97 0.88 0.8 0.74 80 1.29 1.17 1.09 1.04 0.99 0.9 0.82 0.76 100 1.32 1.19 1.11 1.05 1 0.91 0.83 …

Get a quote### Study of Forces Acting on Excavator Bucket While Digging

Page 2 of 6 Citation: Khedkar Y, Dey T, Padasalagi Y (2017) Study of Forces Acting on Excavator Bucket While Digging. J Appl Mech Eng 6: 282. doi: 10.4172/2168-9873.1000282 Volume 6 • Issue 5 • 1000282 J Appl Mech Eng, an open access journal

Get a quote### Technical Specifications for 320 Hydraulic Excavator

Hydraulic System Main System – Maximum Flow (Implement) 429 L/min (214.5 × 2 pumps) 113 gal/min (56.5 × 2 pumps) Swing System – Maximum Flow No swing pump Maximum Pressure – Equipment – Normal 35 000 kPa 5,075 psi Maximum Pressure – Equipment – Lift Mode 38 000 kPa 5,510 psi Maximum Pressure – Travel 34 300 kPa 4,974 psi

Get a quote### Table 1: Factors for depth of cut and angle of swing

Table 1: Factors for depth of cut and angle of swing effect on Factors for depth of cut and angle of swing effect on shovel production Material Fill Factor % sandstone – standing bank 85 - 100 Table3: Fill factors for excavator . Production Aids Construction Management 2-2 Class of material Size of bucket (cubic m) 0.29 0.38 0.57 0.76

Get a quote### Swing depth factor table for hydraulic excavators

The swing depth factor is determined from Table 6 depending on the size of the excavator, swing angle, and depth of excavation. Output of the excavator can be determined by Eq.

Get a quote### Excavators - UPJ

Obtain the value of Swing-depth factor by interpolation as follows: Step 4 of 7. Refer table 3-3, "Standard cycles per hour for hydraulic excavators" from the text book. For small hydraulic excavator and hard clay, the number of cycles per hour is 160.

Get a quote### CE417: Construction Methods and Management

Q3A hydraulic excavator is excavating the basement of a building . Heapd bucket capacity is 1.5 cu M. The material is common earth with a bucket fill factor of 0.9. Job efficiency is estimated to be 50min/hr. the machine's maximum depth of cut is 24m and the average digging depth …

Get a quote### Chapter # 2 Part # 2

3) A hydraulic excavator is excavating the basement of a building. Heaped bucket capacity is 1.5 cu yd. The material is common earth with a bucket fill factor of 0.9. Job efficiency is estimated to be 50 min/hr. The machine's maximum depth of cut is 24 ft and the average digging depth is …

Get a quote### CE417: Construction Methods and Management

Q3A hydraulic excavator is excavating the basement of a building . Heapd bucket capacity is 1.5 cu M. The material is common earth with a bucket fill factor of 0.9. Job efficiency is estimated to be 50min/hr. the machine's maximum depth of cut is 24m and the average digging depth …

Get a quote### Solved: Chapter 3 Problem 1P Solution | Construction

Here, C is the number of cycles per hour, S is the swing-depth factor, V is the heaped bucket volume, B is the bucket fill factor, and E is the job efficiency. Compute the depth of cut by using the following relation: Substitute for actual depth and for optimum depth.

Get a quote### Chapter 3: Excavating and Lifting

• Given the following information for a hydraulic excavator, find the expected production in LCM/h • Heaped bucket capacity is 1.5 m3. The material is tough clay with a bucket fill factor of 0.75. Job efficiency is 45 min/hr. Average depth of cut is 3.5 m. Maximum depth of cut is 5 m and average swing is 60° Dept. of Civil Eng. Hashemite

Get a quote### The 7 Types of Excavators: Which One Should You Choose

Jun 06, 2019 · The biggest differentiating factor between the various models is their size, as size often correlates with range of mobility and lift and dig capacity. Caterpillar's smallest mini-excavator, for instance, weighs just 2,070 pounds and has 13 hp whereas their largest is the CAT 6090, which weighs a record-breaking 2,160,501 pounds and has 4,500

Get a quote### Chapter 2 Productivity of Construction Equipments

Equipment can be broadly classified into two based on their productivity concepts: these are: - A hydraulic front shovel excavating common earth has a heaped capacity of 1.5 cyd. Its Depth- swing factor (from table 2.2) f1 = 0.81, bucket fill factor = 0.9 from table 2.3.

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