Raised Floor Pedestal HJ-2

floor pedestals

Overview

Raised Floor Pedestal HJ-2 consists of a base plate, tube, threaded rod, head plate, toothed lock washer and hexagon nut. Raised Floor Pedestal HJ-2 is compatible with concrete filled steel panels and hollow steel panels (panel size: 600 mm × 600 mm). The pedestals can provide ± 20 mm (± 0.78") vertical adjustment.

HJ-2 series pedestals installed with raised floor panels are able to reach finished floor heights (FFH) from 150 mm to 600 mm (5.9" to 23.6"). For lower raised floor pedestal please check Raised Floor Pedestal HJ-1.

The whole raised floor understructure HJ-2 includes pedestal HJ-2 and stringer HJ. The use of bolt-on stringers can highly increase loading capacity and lateral stability.

Range of Finished Floor Heights From 150 mm to 600 mm (5.9" to 23.6")
Range of Tube Heights From70 mm to 500 mm (2.75" to 19.68")
Range of Height Adjustment ± 20 mm (± 0.78")
Pedestal Axial-Load Performance 29.5 kN, 3015 kgf, 6646.9 lbf
Stringer Concentrated-Load Performance 2.74 kN, 280 kgf, 617 lbf
Coating Raised Floor Pedestal HJ-2 is plated in yellow zinc, and Raised Floor Stringer HJ is coated with electrophoretic deposition (EDP). Other coatings are available on request.



Compatibility

2 Types of Head Plate HJ
Raised Floor Pedestal Head Plate HJ-NCL
Rigid grid, Non-Cornerlock
4 taped holes to lock stringers
floor pedestals
Raised Floor Pedestal Head Plate HJ-CL
Rigid grid, Cornerlock
8 taped holes to lock stringers and panels
raised floor pedestals
Compatible panel size Dimension: 600 mm × 600 mm
Panel height: 30 mm-32 mm (concrete filled panel, hollow steel panel)
Stringer size: 20 mm × 30 mm × 567 mm (thickness: 0.75 mm)
Bolt-on stringer shall be secured to the pedestal
Dimension: 610 mm × 610 mm
Panel height: 30 mm-32 mm (concrete filled panel, hollow steel panel)
Stringer size: 20 mm × 30 mm × 577 mm (thickness: 0.75 mm)
Bolt-on stringer shall be secured to the pedestal
Compatible panel Concrete filled steel panel
Hollow steel panel
Understructure system There are two different types of access floor understructure system, that is Non-Cornerlock system and Cornerlock system. Raised Floor Pedestal Head Plate HJ-NCL and HJ-CL are to be installed with Non-Cornerlock system and Cornerlock system respectively.
1. Rigid grid, Non-Cornerlock (using head plate HJ-NCL and stringer HJ)
2. Rigid grid, Cornerlock (using head plate HJ-CL and stringer HJ)
access floor pedestals


Please note that the stringer and pedestal head plate’s tapped holes can be customized to fit your panel.

1. Raised floor panel sizes may differ from manufacturer to manufacturer, but we can adjust the stringer size to fit varied sizes and shapes of panel, please inform us your demanded stringer dimensions.

2. If you use Cornerlock raised floor panel, please specify the position and size of the head plate’s tapped holes for panel mounting, and we will manufacture the pedestal to suit your panel.



Specifications

access floor pedestal
1. Head plate Raised Floor Pedestal Head Plate HJ
Length × Width: 75 mm × 75 mm
Thickness: 2.5 mm
2. Head plate's tapped holes for stringer mounting M6
3. Threaded rod 3/4"
4. Toothed lock washer 3/4"
5. Hexagon nut 3/4"
6. Tube Tube outside diameter: 22.2 mm
Thickness: 1.6 mm
FFH: 150 mm-400 mm
Tube outside diameter: 23.5 mm
Thickness: 2.3 mm
FFH: 450 mm-600 mm
7. Base plate Length × Width: 100 mm × 100 mm
Thickness: 1.8 mm
8. Tapped hole for earth connection M6
9. Earthing screw (pan head screw) M6
10. Stringer screw (flat head screw) M6
11. Bolt-on stringer HJ (hollow rectangular section) Size: 20 mm × 30 mm
Length: 567 mm
Thickness: 0.75 mm
(Panel dimension: 600 mm × 600 mm)
Size: 20 mm × 30 mm
Length: 577 mm
Thickness: 0.75
(panel dimension: 610 mm × 610 mm)



Features

1. The raised floor pedestal components are pre-assembled to reduce your installation time.

2. Upon customer’s request of earthing (grounding), an earth screw point on the base plate will be tapped and a M6 screw will be provided. Installation of earth bonding can be realized by passing and tightening a M6 screw through your wire connector.

3. Raised Floor Pedestal Axial Load Test:
Raised Floor Pedestal HJ-1 is tested in accordance with the test procedures set forth in Ceilings & Interior Systems Construction Association CISCA A/F, Section 5 and European Standard En12825. The Raised Floor Pedestal HJ-1 is capable of withstanding 37 kN, 3870 kgf, 8531 lbf axial load per pedestal.
(The test result is based on FFH 130 mm pedestal, threaded rod size: M16)

4. Raised Floor Stringer Load Testing:
Raised Floor Stringer HJ is tested in accordance with the test procedures set forth in Ceilings & Interior Systems Construction Association CISCA A/F, Section 4 and European Standard En12825. The raised floor stringer HJ is capable of withstanding 2.74 kN, 280kgf, 617 lbf axial load per stringer.
(The test result is based on hollow rectangular section stringer, thickness: 0.75 mm)

5. Panel installed with Raised Floor Pedestal HJ-1 can reach finished floor heights from 60 mm to 200 mm (2.36" to 7.87"). For higher access floor pedestal please check Raised Floor Pedestal HJ-2.

6. Height adjustment ± 20 mm (± 0.78").

7. Raised floor pedestal’s head plate is welded to a M16 hexagon nut to provide vertical adjustment and thread engagement of the threaded rod.

8. A M16 hexagon nut screwed on the threaded rod can be adjusted to hold the head plate in position.

9. Bolt-on access floor stringer (hollow rectangular section) can increase lateral stability and add additional load bearing.



Coatings

1. Generally the whole access floor pedestal is coated with yellow zinc to prevent rusting, and the stringer is coated with E-coat (electrophoretic deposition, EPD). Other coatings are available upon request.

2. In industrial application where acid or alkali resistance is needed, the access floor pedestal will be coated with polyvinylidene difluoride (PVDF) to prevent corrosion from acid or alkali exposure.

3. If highly corrosion resistant coating (anti-rust coating) is required, we suggest you to have the raised floor understructure coated with hot dip zinc galvanization or DACROMET plating.

4. To prevent zinc whisker contamination, we suggest other surface finishing such as powder coating, hot dip zinc galvanizing or nickel plating.

5. Hot dip zinc galvanized threaded rod can be made available but not recommended, because it would be difficult and costly to remain the thread dimensions within the original specifications. We would suggest you to choose other alternatives, such as PVDF, DACROMET or powder coating.

6. If you need to check corrosion resistance of specific coating or specific coating thickness, the coated component or product will be tested in neutral salt spray test and the report will be provided for you.

7. Should you have any special requirements for the corrosion resistance of the pedestal, please inform us. We will do our best to meet your requirements.



CAD drawing

Raised Floor Understructure System: HJ System
aised access floor pedestal
Raised Floor Stringer: Stringer LH
raised access floor undersctructure
Raised Floor Stringer: Stringer HJ
access floor understructure