TENDER 16/EU/2017/ERTG REGARDING PURCHASE AND DELIVERY OF 5 ELECTRIC RUBBER GANTRY CRANES

Transcription

1 TENDER 16/EU/2017/ERTG REGARDING PURCHASE AND DELIVERY OF 5 ELECTRIC RUBBER GANTRY CRANES Q&A table regarding technical specification (Employer s requirements) in accordance with point 5.6 of Terms of Tender. Please also refer to point II.1.C of the Notice: Detailed technical specification (Employer s requirements) constitute an integral part of the Tender Documentation and is available in the registered office of the Ordering Party and, at Bidder s written request, shall be sent to the Bidder by post or by the expiry of the bids submission date set out in point 6.12 of the Terms of Tender.

2 No Question Answer Regarding the steel standard in the Item 2.3 in page 5, we propose to use GB/T700 or GB/T1591 which is equivalent to EN10025, Q235B and Q345D which is equivalent to S235JR and S335J2 respectively. Regarding the RTG design lifetime in the Item 2.4 in page 7, we propose the design lifetime shall be 2,000,000 cycles according to U7 Utilization Clause of FEM rd Edition standard. Regarding the bearing lifetime in the Item 2.5 in page 7, we propose the theoretical lifetime of hoist, trolley and gantry bearing shall be hours according to T7 Utilization Class of FEM rd Edition standard. Regarding the gantry tyres in the Item 3.1 in page 8, we propose the tyre size can be / 32 PR. With bigger tires the surface pressure is decreased. Regarding the dimension in the Item 3.1 in page 8, we propose the length of cable reel assembly from the tyre center line shall be 1.6 m. This is because then a safe distance from the track to the cable can be achieved. Regarding the wheel load in the Item 3.1 in Page 8, we propose for the dynamic wheel load case (under 41T load, 20m/s wind speed and trolley position at opposite of truck line side) the maximum wheel load shall be max 185 KN/wheel. Regarding the spreader in the Item 4 in page 9, we will offer the YSX40E II type spreader which is same model as the existing spreaders in DCT terminal. However, there is no guarantee that the new spreaders are fully compatible with the existing spreaders as some of the components Conditional approval. Accepted only on the condition the Supplier must deliver EU certificates, confirming the steel quality and Employer reserves a right to verify it. WE accept your proposal. The required design lifetime is 2 million cycles, as a minimum. DCT require the highest quality bearings This proposal does not meet DCT standards

3 might have been upgraded by the spreader manufacturer for improvement or the existing spreaders might have been designed specifically to fit other crane manufacturer. In the Contract Draft document (page 87 chapter 8. Anti-sway system tests) and in the Technical specification document on (page 9 chapter 4.1. ANTI-SWAY SYSTEM) the sway limitation is said to be A/ Max 70 mm of lateral displacement after B/ Max 50mm of the yaw motion 1. Are these values meant to be from the nominal position of the container or the Peak-to-Peak amplitude of sway? 2. We propose to clarify the test values to the following: A/ Max +/-70 mm of lateral displacement sway after B/ Max +/-50mm of the yaw motion sway 3. Please describe in what way the B/ value of Yaw will be measured? Separating yaw and sway amounts in tests is difficult in practice as they happen simultaneously. We would propose that instead having A/ and B/ values separately, it would be simpler to agree a simple max displacement at the end of the container like +/-100 mm. In the Contract Draft document (page 87 chapter 8. Anti-sway system tests) the test is done with a spreader in a 45 position but in the Technical specification document on (page 9 chapter 4.1. ANTI-SWAY SYSTEM) the spreader position in testing is mentioned to be in the 40 position. Which one is correct? The tender does not ask 45 feet spreader. Regarding the trolley platform in the Item 5.2 in page 10, we propose the trolley deck shall be covered by galvanized gratings as gratings help to prevent accumulation. 1. "+/-" means that is values measured from nominal position of the container 2. Accepted: The sway limitations: A/ Max +/- 70 mm of lateral displacement after 2 sway cycles, when the trolley was stopped at any speed, with maximum deceleration at any load. B/ Max +/- 50mm of the yaw motion, measured at any spreader corner, following the stop of the trolley as in the case A/, as well as after at the rapid stop of the skewing. 3. The suitable measurement methodology shall be submitted by a contract Engineer who will be selected after the tender is announced. DCT require to use 45ft container handled by the spreader on 40ft position. This proposal does not meet DCT standards

4 Regarding the master key system in the Item 6 in page 11, we need the definition of this Master Key system. For instance the information on the manufacturer brand, type and amount is needed. Regarding the performance of auxiliary genset in the Item 7.1 in page 11, simultaneous hoist and gantry is available when RTG is powered by auxiliary genset, but the maximum speeds are subjected to the output of the auxiliary diesel genset. Regarding the fuel filler nozzle in the Item 7.1 in page 12, we propose the fuel filler nozzle for the auxiliary genset shall be Kelch Cap type. Master Key system means each lock on crane should be compatible with locks existing on cranes in DCT. At this moment we are using Abloy or ISEO locks. You can find powered by Generator set minimum motion speed in the Item 7.1 on page 11. Not complying with DCT standards Regarding the auxiliary genset in the Item 7.1 in page 12, we propose the auxiliary genset is a constant speed type with idle speed function and the exhaust system is located on ground level as per the requirement for detachable aux genset Regarding the tyre pressure in the Item in page 13, the tire pressure is visible inside the cabin but not the historical data. The historical data is seen on the remote diagnostics system of the RCMS, in this way, the tyre pressure data is recorded by the RCMS. Regarding the overload system in the Item in page 19, we propose Belleville washers combined with inductive switches shall be used for overload protection. This solution is proven design and used in hundreds of RTGs globally. The snag load protection is not applicable for RTG. Regarding the engine control panel in Item in page 20, we propose the ammeter for battery charging will be shown on the charger, not on the engine control panel. Regarding the wireless fast stop and wireless fast stop of gantry travel in Item 8.4 in page 21, considering compatibility, we propose Customer can provide the detailed information including brand for the wireless fast stop used in existing cranes in DCT. Otherwise, we will provide The exhaust system must include an industrial silencer and extends to minimum 3m above the ground level. These solutions meet the DCT requirements It is Tyro Remote System. Type: Indus AQ.

5 HETRONIC RX HL series of Receiver and Mini series of Transmitter for the wireless fast stop and wireless fast stop of gantry travel. With HETRONIC wireless fast stop, the specification might be slightly different from Customer's requirement. The working range of the transmitter shall be around 100m, 20 hours of battery life for continuous operation and the weight with battery shall be 320g. The protection class of the receiver shall be IP65. Regarding the electrical check and fault finding systems in the Item 8.7 in page 24, Our PLC has built-in internal counter to store some data and those data can be accessed remotely via SmartFleet system to be stored in Employer's server in terminal. However, counter with lockable swivel is not available in RTG. The "black box" data can be accessed from the RCMS but not from the CMS. The data can also be retrieved manually with an USB stick directly on-board the RTG. Regarding the CMS system in Item 8.8 in page 25, we propose the Crane Management System consisting of 3 modules: - Touch Panel Display in Cabin and EE-House working in conjunction with PLC. - Industrial PC desktop in EE-House to interface with PLC. - Remote access (RCMS) to the cranes via Employer's WiFi and the data can be stored in Employer's servers in Terminal. SmartFleet system shall be able to generate the report manually upon request. The solution is available only via WiFi data communication, which is entirely in customer scope including onboard antennas and clients. Regarding the access lighting in the Item 8.10 in page 26, we propose the access lighting shall be fluorescent type that consumes less energy than halogen type. Regarding the spreader cable in the Item 8.15 in page 27, the lead bead weights shall not be needed for the spreader cable. We will require LED lamps. Each ladder, staircase, platform and walkway should have suitable illumination by LED floodlight giving as a minimum 50Lux illumination. Acceptable if the manufacturer guarantees the correctness of the solution.

6 Regarding the CCTV system in Item 8.16 in page 27, we propose the video images from the cameras shall be recorded and stored for a period of seven (7) days with an image quality not higher than the displayed image resolution of 1280(H)x1024(V) (=1.31Mpix). We would supply a solution where the images are stored onboard, i.e. Our solution would not be centralized. However the images can be accessed wirelessly, details to be agreed at a later stage between the parties. Regarding the roof of cabin in the Item 13.1 in page 31, we propose the roof of the cabin shall be steel plate, not windows. RTG driver does not benefit from glass roof. Without the glass roof, there is less to clean and repair if broken. Regarding the security system in cabin in the Item 13.3 in page 30, we propose the security system function as per DCT's requirement will be connected to the remote diagnostics system of the RCMS, which provides the remote access capability. Regarding the trim and skew in the Item 13.4 in page 31, trim and skew angle is not be displayed on touch panel display. The driver can, with its joystick bottoms, easily center the trim and skew when needed. We propose that this would be acceptable. Regarding the fasteners surface treatment in the Item 19 in page 33, we propose only fasteners up to M12 size shall be stainless steel and beyond that, Geomet surface treatment fasteners shall be applied. Geomet surface coating is a dry zinc flake coating that is designed especially for high tensile strength bolts. Please give details on the required Cyber security certificate on page 34, chapter 21. What are the requirements for this document? Please note that naturally the Supplier can only give this kind of certificate only for its own products up to the customer s system interfaces. Hence this kind of certificate covers only a small piece of the customer s systems. High located front window in cabin ensures good air circulation. Security system should be independent. Cyber security certificate should specify level of secure IT and OT structure and components used by crane manufacturer.

7 Regarding the automated positioning system in the Item II A in page 35, we propose automated positioning of a container i.e. matching the truck chassis position with the box is implemented with the aid of directional arrows and traffic light solution, which helps the operator to stop at the correct place to avoid corrective movements for the truck or RTG. The semi-automation readiness consists of brackets and some of the cables that are required when RTG motions need to be automated in the future. The offered solution will offer Our standard TOS interface message for container pick & place transactions, which customer needs to integrate to their TOS. Regarding the semi automation of operations in the item II C in page 36, we propose a system that uses the stack profile system to automatically slow down the spreader, with or without a container, in the critical hoist lowering movement in a safe and controlled speed on top a container. This is called the automatic slow-down feature. The stack profile system assists the driver automatically in preventing hitting the other containers on the bay while the driver manually optimizes the spreader travelling with manual control of hoist, trolley and gantry movements. Regarding the container weighing system in the Item II G in page 37, we propose the hoist motor torque will be used for load weighing and overload detection verification purposes. Hoist weighing accuracy will be 3 % of rated load. The weight data will be transferred with the CPI (Container Position Identification) information to the VMT. In relation to requirements of chapter 7.1. Can XXXXXXXX offer as an option standard XXXXXXXX auxiliary diesel generator with same power rating as required by the Technical Specification? Comment: XXXXXXXX standard auxiliary diesel generator will be

8 around EUR cheaper comparing to diesel generator required by the Technical Specification. So total saving will be EUR for 5 RTG cranes. In relation to requirements of chapter 3.2. XXXXXXXX can offer higher hoist speeds as follows: Empty spreader 60 m/min 40,6t with spreader 30 m/min XXXXXXXX can offer shorter hoist acceleration times as follows: Empty spreader 3 sec 40,6t with spreader 2 sec Are better hoist performance numbers acceptable for DCT Gdansk? In relation to requirements of chapter 3.2. XXXXXXXX can offer better performance numbers for skew and trim system (chapter 3.2 of the Technical Specification) as follows: 5 degrees skew time: 5 sec (not 15.0 sec) 5 degrees (not 2.5 degree) trim time: 5 sec (not 30.0 sec) Are better skew and trim system performance numbers acceptable for DCT Gdansk? Regarding requirements of chapter 5.4. Each trolley wheel of XXXXXXXX RTG crane has own electrical motor with integrated break which is sized to hold trolley on the place under specified in the Technical Specification wind loads and operational dynamic loads. Is this acceptable for DCT Gdansk? Regarding requirements of chapter 5.4. At XXXXXXXX RTG cranes in each corner of gantry each pair of wheels has own electrical motor with integrated break which is sized to hold gantry on the place under specified in the Technical Specification The specification presents minimum requirements The specification presents minimum requirements Acceptable if the manufacturer guarantees the correctness of the solution. Acceptable if the manufacturer guarantees the correctness of the solution.

9 operational wind loads, in addition to that parking mode of the gantry can be activated, which additionally prevents gantry from moving under heavy winds (In PARKING mode one wheel pair at each corner is pivoted through 90 degrees to hold the crane against moving in high wind conditions). Same solution was used on delivered cranes. Is this acceptable for DCT Gdansk? In relation to sentence from chapter 8.1 All electrical components like circuit breakers, DIN power supply s etc. should be unified and delivered by up to five different manufacturers. Re-designing of proven electrical system (used at more than 1100 RTG cranes) will lead to significant increase of crane price without increase of value for customer and might have effect on the reliability of the crane. XXXXXXXX would recommend to use standard design of electrical system (same as on delivered RTG cranes) with not more than 15 manufacturers of electrical components. Is this acceptable for DCT Gdansk? In relation to requirement in chapter 8.4. Wireless fast stop of gantry travel. What should be the difference between wireless fast stop and gantry wireless fast stop? According specification both will disconnect the emergency circuit when the button is pressed. Emergency circuit is hard wired and in both cases it will stop all the drives. Technically this would make no difference between these two systems. In relation to requirement in chapter On low voltage control circuits, no more than three devices shall be assigned to one circuit breaker. Re-designing of whole electrical system will lead to increase of crane price without increase of value for customer. All electrical components like circuit breakers, DIN power supply s etc. should be unified and delivered by up to fifteen different manufacturers. Wireless fast stop of gantry travel should work on gantry travel mechanism ONLY. The Wireless fast stop shall work on all drives. We can accept up to 5 devices assigned to one circuit breaker

10 XXXXXXXX will try to follow this requirement where it is possible, but keeping electrical design as close as possible to previous delivery in order to provide uniformity. Is this acceptable for DCT Gdansk? In relation to requirement in chapter They must be made of rust proof materials. For better dissipation of heat, XXXXXXXX uses proven solution comprised of resistors (not rust proof) inside of rust proof box, protecting resistors from any weather conditions. Is this acceptable for DCT Gdansk? In relation to requirement in chapter 8.7. Black box function is a part of XXXXXXXX CMS (same as on delivered cranes). Is this acceptable for DCT Gdansk? In relation to requirement in chapter 8.8. XXXXXXXX would like to offer same CMS as on delivered cranes. Is this acceptable for DCT Gdansk? In relation to requirements of chapter Instead of complex and expensive CCTV system required by the chapter, XXXXXXXX would recommend to use standard proven (delivered to hundreds of XXXXXXXX RTG cranes) 6 cameras package (Eneo cameras not IP type and without recorders, 2 cameras at sill beam near truck lane + 4 cameras at bogies 1 per each bogy). This will allow DCT to save at least around EUR per RTG crane. Though XXXXXXXX is able to provide RTG cranes with CCTV system in accordance with requirements of chapter Will you accept standard XXXXXXXX 6 cameras CCTV system? These solutions meet the DCT requirements-rust proof box. Reporting system is missing.

11 In relation to requirements in chapter 11. XXXXXXXX would like to use own proven combination of limit switches (same as on delivered cranes). Is this acceptable for DCT Gdansk? In relation to requirements in chapter XXXXXXXX would like to use own proven cabin, same as on delivered cranes. Is this acceptable for DCT Gdansk? In relation to requirement in chapter 15 and 16. For positioning of trucks under the crane XXXXXXXX proposes to use Auto-truck guiding system (please see functional description). The system includes both functions required by chapter 15 and 16, there is one set of lights (two green arrows go forward / go backward and red cross do not move ) which is used for positioning of trucks under the crane as well as it informs by blinking green arrow that truck driver can go away or informs truck driver that he cannot go if red cross light is on. Is it acceptable for DCT to use XXXXXXXX Auto-truck guiding system for both purposes? In relation to requirements in chapter 20 b. XXXXXXXX would like to use same proven systems as on delivered cranes Auto- Steering and Auto-Positioning. XXXXXXXX will not make any markings on the container yard stacks. Is this acceptable for DCT Gdansk? In relation to requirements in chapter 20 d. XXXXXXXX would like to use same proven systems one-way communication with loudspeaker. For two-way communication crane will be equipped with telephone system in accordance with chapter 10.2 (same set as on delivered cranes). Is this acceptable for DCT Gdansk? Please read the Technical Specifications more carefully. "RTG shall be fitted with hands free two-way radio communication device operated by a foot pedal and or button positioned on the operators joy stick." Manufacturer shall prepare crane for installation of "hands free radio". For example on joystick should be dedicated button for radio operating connected with cables prepared to connection with radio.

12 In relation to requirements in chapter 20 e. There is no need for mirrors on the cabin, because DOME camera installed under the trolley provides same and even better functionality. Is this acceptable for DCT Gdansk? In relation to requirements in chapter 20 h. Fenders are installed on the gantry corners (1 fender per corner) in order to fulfill the requirement (same set of fenders installed on the delivered cranes). Is this acceptable for DCT Gdansk? In relation to requirements in chapter 20 i. XXXXXXXX would like to use same as on delivered cranes stack profiling system (Stack Collision Prevention). Is this acceptable for DCT Gdansk? In relation to requirements in chapter 20 j. In order to offer cost optimal solution, XXXXXXXX would like to offer this system for e-room and transformer room, but not for diesel generator enclosure. Is this acceptable for DCT Gdansk? In relation to requirements in chapter 20 All passwords for PLC and other electronic devices. XXXXXXXX will provide same set of passwords as for delivered cranes (Operator s panel, CMS, inverters, diesel engine panel, but not to PLC). Is this acceptable for DCT Gdansk? In relation to requirement in chapter II D Operator s seat. Cannot be applied to cabin of XXXXXXXX RTG cranes, as cabin is designed to fit into rope reeving scheme of the crane and cannot be made bigger, and because of such optimal size it was possible to shift it forward for better visibility of the operator. Is this acceptable for DCT Gdansk? The system can be substituted for suitable camera system. Installed fenders have to be "slanted people pusher". We accept only if will be possible to log in to PLC. Please follow the specification.

13 55 In relation to requirement in chapter II F Automatic greasing of hoist ropes. XXXXXXXX is able to provide RTG cranes with such a system (see attached description), though out of 1100 RTG cranes delivered since 1995 there was only one project with such system. XXXXXXXX does not recommend to go for automatic rope greasing. Ropes should be greased manually at the time the service technician goes to inspect the ropes anyway. This ensures that the ropes really get greased which may not happen if there is some problem, e.g. some tube or nozzles are stuck, in the automatic system. The design of the system cannot guarantee protection from contamination by grease the adjacent area of the crane or the yard, most probably there are no systems at all which can guarantee that. Important to add that the system itself must get some maintenance from time to time. If DCT will decide to cancel requirement of such system, then it will allow to reduce price of each RTG crane for EUR. So total saving will be EUR for 5 RTG cranes. Will DCT cancel this requirement? If not, will DCT find acceptable system proposed by XXXXXXXX? Approved. We have removed it from the Technical Specifiactions. 56 To conclude for information purpose only: if DCT will accept XXXXXXXX standard auxiliary genset, other systems mentioned above and will cancel requirement of chapter II F, then total savings will be EUR for 5 RTG cranes p. 3.1 is it possible to increase wheel load to 183 kn? 57 p. 4 Could you please provide a drawing of the spreader type YSH 40 E II for ensuring compatibility and replaceability This is Bromma product. If you need drawing please ask spreader manufacturer.

14 58 p. 7.5 trim and skew. Is it possible that these options function separately? Please follow the specification p Could you please specify the cable drum capacity and reserve capacity. Could you please inform the distance from the feed in column of the drum and to the railhead? p Crane travel motors As per our calculations, capacity of each motor is less than 45 kw Is it possible to use motors of less capacity? Trolley travel motors As per our calculations, capacity of each motor is less than 40 kw Is it possible to use motors of less capacity? Please read the Technical Specifications more carefully. All necessary information in chapter 8.2. Please read the Technical Specifications more carefully. Power shown in specification is a maximum power. 61 p. 20.j Automatic fire suppression system. Could you please inform the type of the system or a preferred supplier to provide compatibility with the system existing at the terminal? DCT do not prefer any system. We have requirement only for extinguishing agent. Please follow the specification, which has been modified. 62 II.D Operator seat in the cabin. Is it possible to install the seat in the floor?

15

16

17

18