Strand Lifting Technology made in Germany

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Brittany Audrey Stevenson
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1 Maschinenfabrik GmbH & Co. KG Strand Lifting Technology made in Germany

2 2 A 800kN strand jack series with hydraulic anchor heads

3 Maschinenfabrik Maschinenfabrik GmbH & Co. KG GmbH & Co. KG The companies DaSTec and PAUL are cooperation partners in the field of lifting technology. They collaborate in the supply of system solutions and proven, top-quality products for lifting, lowering and pulling heavy loads. DaStec develops the application solution. PAUL supplies the equipment. Since 1955, PAUL has developed and built stressing jacks and hydraulic pump units for the manufacture of prestressed concrete products, and since 1986 has also supplied a series of strand jacks with mechanical anchor heads. The company s many years of experience in these fields and DaSTec s hands-on practical expertise have been channelled into the development of new, efficient and durable products for strand lifting applications. A new series of lifting cylinders with hydraulic anchor heads now permits the automatic movement of loads, supplementing the existing product spectrum. Our plant in Dürmentingen provides production space of 37,000 square metres, and accommodates the assembly, design and sales departments as well as a trainee workshop. The complete PAUL site covers an area of more than 120,000 square metres. 3

4 PDM/PDH STRAND JACKS A strand jack essentially comprises the lifting cylinder and two anchor heads (top anchor and bottom anchor). The strand cable is moved upwards or downwards by alternately opening and closing of the top and bottom anchor during the lifting stroke of the hollow piston. This creates the load (G) lifting or lowering movement. Lifting cylinder Hollow piston Jack support chair Wedge plates of the top and bottom anchor head Anchor wedges of the top and bottom anchor head Strand with load (G) Our strand jacks are designed for strands with a diameter of 15.7 mm. An admissible force of 120 kn is allowed per strand. 4 We offer strand jacks with a nominal load of 200 to 6,400 kn and a lifting stroke of 500 mm. The series is designed to allow strand jacks for different rated loads to be easily combined.

5 Maschinenfabrik Maschinenfabrik GmbH & Co. KG GmbH & Co. KG Strand jacks with mechanical anchor heads (series PDM) are available for rated loads of up to 1,600 kn, and with hydraulic anchor heads (series PDH) for rated loads of up to 6,400 kn. PDM-020 PDH-020 PDM-040 PDH-040 PDM-080 PDH-080 PDM-160 PDH-160 PDH-320 PDH-640 Rated load [kn] Piston area [cm²] Retraction area [cm²] Pressure [bar] Cylinder force [kn] Number of strands Admissible strand force [kn] Optimum strand guidance is guaranteed by hardened guide plates at the anchor heads and suspension. Telescopic strand guide tubes perform this function inside the hollow piston. The basic equipment of the strand jack includes the following components: Load holding valve Connection for second strand jack 2 electrical pressure sensors to measure pressure on the piston and retraction side Linear potentiometer for piston stroke One linear potentiometer each for the wedge-seating stroke of the anchor heads (series PDH) The hydraulic anchor heads open and close the anchor wedges (by pressing them into the wedge plate). This is particularly beneficial for pulling operations in horizontal use. 5

6 PDP HYDRAULIC PUMP UNITS Every strand jack is supplied by a hydraulic pump unit. This allows hydraulic line lengths to be kept to a minimum. There are three different units using pumps with different delivery capacities. The pumps also supply the hydraulic anchor heads. PDP-08 PDP-16 PDP-32 Flow rate, lifting cylinder [l/min.] Lifting cylinder pressure [bar] Flow rate, anchor assemblies [l/min.] Pressure, anchor assemblies [bar] Motor output, pump [kw] Connected loads, three phase current [V] (without neutral conductor) [Hz] Oil tank [l] Lifting speed [m/h] with strand jack PD-020 with strand jack PD-040 with strand jack PD-080 with strand jack PD-160 with strand jack PD-320 with strand jack PD-640 (recommended application range in bold)

7 Maschinenfabrik Maschinenfabrik GmbH & Co. KG GmbH & Co. KG Standard equipment: Return-flow filter with clogged filter indicator light at the control system Oil level display at the oil tank (filling quantity and temperature) Electrical cabinet with interface for the bus system and connection with manual control system Optional equipment: Electrical oil level display Electrical oil temperature display Oil tank heating Oil tank cooling Frequency converter for stepless flow rate As the standard configuration for an equipment outfit, we recommend the following items: 4 strand jacks 4 transport cases 4 hydraulic pump units 4 fixed anchors 1 control system 1 bus cable (data cable) 4 sets of hoses 5 m (optionally 10 m) with data and control cable for strand jack 4 strand guides 1 uncoiling reel for strands The configuration is adjusted individually to customer requirements. The control system and accessories are described on the following pages. 7

8 CONTROL SYSTEM Operation of the strand jacks takes place centrally with the aid of a user-friendly control system. It visualizes up to 16 strand jacks on a display, so guaranteeing full control of the hydraulic pressure, piston stroke and anchor assembly status (open/closed). If required, the display can be supplemented by additional strand jacks. The central control system is connected by means of a bus cable to the individual hydraulic pump units and processes signals in real time. Typ PDH-080 PDH-080 PDH-080 PDH-040 PDH Stroke [mm] Load [kn] Lift [mm] Total [mm] Lift Typ Stroke [mm] Load [kn] Lift [mm] Total [mm] Lift START MENUE Total Load [kn] 2547 The following operating modes are supported by the control system: Set-up mode and pre-load stroke Automatic lifting and lowering mode Manual mode for corrections 8 The control system monitors the lifting or lowering mode. It is possible to select between pressure and path monitoring. If the prescribed limiting values are exceeded, the operator is warned and, if necessary, the current process is stopped in order to carry out the necessary corrections. In the automatic mode, the control system regulates the stroke and pressure automatically.

9 Maschinenfabrik Maschinenfabrik GmbH & Co. KG GmbH & Co. KG ACCESSORIES We supply a series of accessories in order to simplify handling of the lifting equipment and the strands: Transport cases Strand guides Hose packages Uncoiling reels for strands Strand dispensers Anchors for fixed side and many more 9

10 APPLICATION FIELDS Kwang Yang Bridge, South Korea, 2009/2010 [Source: Gleitbau Salzburg] 10 Salzburg Airport, Austria, 2012 [Source: Gleitbau Salzburg]

11 Maschinenfabrik Maschinenfabrik GmbH & Co. KG GmbH & Co. KG Bridge Selo, Croatia, 1997 [Source: Citra, France] Steel platforms in Jeddah, Saudi Arabia, 2007 [Source: Gleitbau Salzburg] Heavy Lifting, Czech Republic, 1995 [Source: Frutiger, Switzerland] 11

12 Maschinenfabrik GmbH & Co. KG Max-Paul-Straße Dürmentingen Germany Phone: +49 (0) 7371 / Fax : +49 (0) 7371 / spannbeton@paul.eu Internet: dastec.paul.eu Riefershäusern Hasle bei Burgdorf Switzerland Phone: +41 (0) 34 / info@dastec.ch Internet: PAUL-Info B /1 Error and modification reserved en

Titan Makina Ltd. Şti. 1160. Sok. No: 9 Ostim 06370 Ankara Tel: + 90 312 354 9977 Fax: + 90 312 385 5611 Web: www.titanltd.com.

Titan Makina Ltd. Şti. 1160. Sok. No: 9 Ostim 06370 Ankara Tel: + 90 312 354 9977 Fax: + 90 312 385 5611 Web: www.titanltd.com. IS26 Concrete Spraying Machine IS26 Concrete Spraying Machine TECHNICAL SPECIFICATIONS Manipulator Max. vertical spraying reach : Max. horizontal spraying reach : Working lights : Spraying Head Rotation