www.malmorstad.no

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n The main objective for the Riser Spider is to take the load off the riser string and BOP while the riser

string is either run or retrieved.

Riser Spider - for Marine Riser, 500mT w/ gimbal

www.malmorstad.no

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nAdvantages

• Reduced rigging time

• Simultaneous up/down movement of dogs

• Integrated gimbal solution

• Integrated covers on hang off dogs to avoid falling

objects through hole when riser is hung off.

• HSE friendly as the operator is in safe distance from

riser spider when operating by the hydraulic remote

control panel.

• Less parts, less maintenance

• Easy to maintain and operate

nTechnical information

• Load rating: 500mT

• Max tilting angle: +/-5 deg, no shock absorption

• Max operating pressure: 3000PSI / 207 bar

• Dimension: 2700x2500x620 (lxbxh) – Closed position

• Design Code: API 16F, Specification for Marine Drilling

Riser Equipment

• Riser type: Designed for MR-6E riser

• Hydraulic fluid: Stack Magic ECO-F v2

(other fluids applicable)

• Design temperature: -200C to 500C

• Certification: DNVGL-OS-E101 “Drilling facilities”, 2018

DESCRIPTIONThe Riser Spider is designed with high emphasize to low building height, few parts, integrated gimbal function

and safe operation. The system mainly consists of Rotary interface plate w/ gimbal and Top plate w/ hang off dogs.

Hydraulic system is restricted to only be capable to lift the own weight of the hang off dogs. When in closed position

the load of the riser avoids hang off dogs to open if unintended activation occurs.

The gimbal function is designed to handle angle deviation of +/- 5 degrees.

This Riser Spider is designed for use with Riser Type MR-6E.

Load capacity and Riser Spider solution can be customized to customer specification on case by case basis.

Please contact Malm Orstad for more info.

nReferences2019: Designed, manufactured and delivered to a Norwegian rig company.

PRODUCT INFORMATION

Riser Spider