Alot of people keep asking about what these machines are and how they work. This is very similar to the current model which is a 6700 production tamper, now made by Harsco Track Technologies. A few months ago, we had our 6500 out working and I shot a video of many of its parts at work.
Usually, the public can't get this close. This is how the machine basically works. Out in front of the machine by about 60' is a light buggy. This shines light directly back at the machine. There are sensors at the rear of the machine that picks up the light from the buggy.
In between the two is a rail follower with a shadow board which interrupts the light beam. Next to the shadow board is the jack beam that has enough power to pick up the rail and shift it side to side and up (can't push the track down) to a point where the operator has set the machine to know as 'line and level'. Then, vibrating tamping heads (electric on the 6500, hydraulic on the 6700) insert just below the bottom of the tie and then squeeze rock underneath the tie. Disclaimer: The video was shot hand held with a small camera, so hopefully it didn't transfer horribly. But, the subject matter is something that you don't get to see very often. You must be a registered subscriber to watch videos.!
When tamping on a curve, you always use the lights and sensors on the inside of the curve. On this machine, you have to plot the curve, ie check the line or the measurement of how far you are from tangent. You do this throughout the entire curve off of a reference mark roughly every 10 feet or so. Once this is done, you take the avarage measurement and use this figure for 'tricking' the machine into thinking the curve is actually tangent. You don't have to do that with the later model 6700's as the computer does all the plotting for you. Imrl Wrote: - When tamping on a curve, you always use the lights and sensors on the inside of the curve. On this machine, you have to plot the curve, ie check the line or the measurement of how far you are from tangent.
You do this throughout the entire curve off of a reference mark roughly every 10 feet or so. Once this is done, you take the avarage measurement and use this figure for 'tricking' the machine into thinking the curve is actually tangent. You don't have to do that with the later model 6700's as the computer does all the plotting for you when plotting either by computer or manually care has to taken if there are fixed objects in the curve such as open deck bridges, switches, grade crossings, railroad crossings at grade since the alignement and crosslevel can't change. Everything has to smoothly transition into the fixed object since it can't be moved.
1923 – Jackson creates electric vibrating hand tamper and incorporates Jackson Vibrators in 1937 and later becomes Jackson Jordan. Electric Tamper and Equipment Company (Pandrol Jackson) was founded in 1923 by Corwill Jackson in Ludington, Michigan.
The company manufactured electric vibratory hand tampers. Incorporated as Jackson Vibrators in 1937, the company later acquired the O.F. Jordan Company and became Jackson Jordan. The product line later expanded to include production and switch tampers as well as tie gang equipment. 1934 – Tamper Corporation is founded and becomes a leader in ballast undercutters, regulators, tie equipment, and utility vehicles. Tamper Corporation, originally founded in Canada in 1934, was headquartered in West Columbia, South Carolina since 1966. Tamper's strength was in a complete line of automated tamping equipment for lifting, leveling, lining, and tamping track.
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A pioneer in the development of high-speed, computer-controlled tamping equipment, Tamper became the leader in user-friendly leveling and lining software. Ballast undercutters and regulators, tie replacement equipment, track inspection and utility vehicles, as well as new track construction and track renewal trains, were a part of the Tamper equipment line. A Contract Services Unit handled maintenance-of-way projects on railways throughout the world. 1990 – Pandrol International Ltd.
Acquires Jackson Jordan. Pandrol International Ltd., a subsidiary of Charter plc., acquired Jackson Jordan in 1990, along with Speno Rail Services and Dapco, and formed the Track Maintenance Division. The division was known as Pandrol Jackson and was comprised of the main offices and manufacturing facility in Ludington, Michigan; the grinder re-manufacturing and operations facility in Syracuse, New York; and the rail flaw detection research and manufacturing facility in Danbury, Connecticut. The rail flaw detection division was sold to Sperry Rail Services in 2002. 1992 – Harsco Corporation acquires Tamper, creating Fairmont Tamper 1999 – Harsco Corporation acquires Pandrol Jackson. Fairmont Tamper merges with Pandrol Jackson to become Harsco Rail.
Running south through Keighley is a Matisa B41UE - Volker Rail Plant, Tamper. It has just worked off the Keighley & Worth Valley Railway and is running to Ferryhill South Jnc on 3rd February 2017.
A tamping machine or ballast tamper is a machine used to pack (or ) the under to make the tracks more durable. Prior to the introduction of mechanical tampers, this task was done by with the help of beaters. As well as being faster, more accurate, more efficient and less labour-intensive, tamping machines are essential for the use of since they are too heavy (usually over 250 kg (551 lb)) to be lifted by hand.
Jackson 6700 Tamper Operator's Manual
Whilst also available as a plain tamper with no lifting or lining function this article will focus on the multi function machines. Early machines only lifted the track and packed the ballast. More modern machines, sometimes known as a tamper-liner or tamping and lining machine, also correct the alignment of the rails to make them parallel and level, in order to achieve a more comfortable ride for passengers and freight and to reduce the mechanical strain applied to the rails by passing trains. This is done by finding places where the sleepers have sunk from the weight of the passing trains or frost action, causing the track to sag.
The tamper lifts each sleeper and the rails up, and packs ballast underneath. When the sleeper is laid down again, the sagged rails now sit at the proper level. In cases where frost action has caused adjacent rails to rise higher, ballast tampers can raise rails above their original level to make the line level again. 'Lining' rails doesn't involve ballast tamping, it merely ensures the rails are perfectly parallel and straight as possible. Combining tamping and lining into a single machine saves time and money, as only one machine needs to be run over the track to perform both functions. An tamping machine Tamper machines are built in many different varieties depending on their purpose:.
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Weeds season 7 complete torrent. Plain line tamping machines: used on line sections which have no points or other complex track structures, commonly referred to as production machines, generally have fixed tamping head positions. Duomatic.
Continuous action tamping machines. Tamping Express. Switch tamping machines: used to tamp switches, crossings and other complex track structures, have movable tamping heads with ability to isolate heads when required. Tamper in livery Tamping and cleaning operations have the adverse effect of reducing the resistance of the track to lateral movement. The resistance gradually recovers with the passage of trains, but may require a speed restriction imposed for the duration. This ' can be achieved faster and in a more controlled manner using mechanised equipment known as the Dynamic Track Stabiliser (DTS).
A DTS will normally be used only after a stretch of track has been tamped and aligned. Has a vibrating unit which holds the track in position and applies a horizontal vibration and vertical load to simulate the passage of trains. The track parameters (or cross levels), before and after stabilising, can be viewed through bogies in the front and rear. Dynamic Track Stabilising has the following advantages, resulting in enhanced safety:. Increases the resistance of the track to lateral movement. Creates a homegenous bed of ballast. Permits earlier relaxation of speed restrictions.
Eliminates non-uniform initial differential settlements caused by rail traffic. Retains correct track geometry for a longer period than was achievable using tamping machines alone. Vibration frequency: 30–35 Hz. Working speed: 1–2 km/h.
• Displays the time it takes the test subject to remove their foot from the accelerator in response to the stimulus. • Displays the distance traveled during the reaction time. • Stores data to the computer disk for future reference. • Technical Details • Windows PC (7 or later) • 1.1 GB Available Hard Drive Space • 14 Inch Monitor (Recommend for Best Viewing) • Minimum Monitor Resolution of 1024x786 (Recommended for Best Viewing) • USB Port for Connecting the Wheel/Pedal System • Available Standard Printer to Print Preformatted Reports • Displays the total perception/reaction time of the test subject in response to a stimulus displayed within the video on the monitor.
![]() Jackson 6700 Tamper Manual
Vertical pressure applied: 100 kg/cm² The stabilisation achieved by one pass of a D.G.S. Is equal to that achieved by 100,000 tonnes of traffic, and allows a speed restriction of 20 km/h to be relaxed to 40 km/h Dynamic stabilisation is usually avoided on bridges or around overhead structures since there is a risk of damage to foundations. Image gallery.
![]() Pandrol Jackson 6700 Tamper
Used Harsco/Jackson Tamper Parts (4) Jackson 6700 Oil Coolers (3) Harsco MKIII Air Conditioning Units 12V (2) Harsco MKIII Oil Coolers (4) Harsco MKIV Air Conditioning Units (1) Harsco MKIV Oil Cooler (4) Harsco MKIV Workhead Side Arm Supports (2) Harsco MKIV Funk Transmissions (1) Set Harsco MKIV- Jack, Slew, Hook, and Buggy Lift Cylinders (2) Combo Clamp Hooks (1) Set Harsco MKIII- Hook, Liner, and Slew Cylinders (1) Set Harsco MKIII ESTR- Jack and Slew Cylinders (2) Set Harsco MKIII- Jack and Slew Cylinders.
Nordco doesn’t just patch up imperfections. We give new life to your worn out machine. Our sophisticated frame requalification gives you a stronger, more robust tamper with a modernized cab with better crossing visibility. Proprietary designs and a little extra attention to detail offer improved safety features and simplified Workhead replacement, and all electrical and hydraulic components are completely replaced with new material. At 2/3 of the cost of a new machine, it doesn’t get any better than Nordco. Superior switch performance The 6700 produces superior performance in switch or turnout surfacing through the use of a Jackbeam that automatically clamps either the base or ball of the rail. We offer an optional extended Jackbeam with hooks that extend an additional 2-1/2' for use in long turnouts.
Nordco remanufactured Workheads and Jackbeams Every remanufactured 6700 includes Workhead and Jackbeam assemblies that are remanufactured using all new parts. Workheads are completely rejuvinated with all new cylinders, guide rods and bushings. Workhead Mounts are completely replaced with proprietary Nordco designs to allow for complete Workhead dismount within minutes.
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