LGRIG® Steel Frontal Panel

Name: LGRIG® Steel Frontal Panel
Brand: QINGDAO LG RIGGING CO.,LTD.
Availability: InStock
Rating: 4.4 (1 reviews)

LGRIG® Steel Frontal Panel, also known as Cell Fender Frontal Panel,Cell Fender Steel Frame, Frontal Frame for Fenders.

LGRIG® Steel Frontal Panel serves the main function of distributing reaction forces from fender units into the ship's hull.

Cell Fender Frontal Panel is available in two types: open type and closed type. Cell Fender Steel Frame for the open type consists of a steel pad, H steel, and across steel. Frontal Frame for Fenders in the closed type is composed of a steel pad, back steel, and H steel.

The structure of this steel frontal panel should be designed according to ships, dock structures, fender arrangement, and water conditions; please contact our Technology Department for detailed specifications.

The main function of frontal panel is to distribute the reaction forces from fender units into the ship's hull.There are two types:open type and closed type.Regarding the open type,it is consist of steel pad,H steel and across steel.Closed type are consist of steel pad and back steel,H steel.

The structure of frontal panel should be designed according to ships,dock structures,fender arrangement and water condition,etc.please contact our Technology Dept for details.

Frontal panel surface pressure calculating:

P - Hull pressure(KN/m²)

∑R - Combined reaction of all rubber fenders

W - Panel width excluding lead-in chamfers

H - Panel height excluding lead-in chamfers

Ph - Permissible hull pressure(KN/m²)

Vessel type	Size/class	Hull pressure (kN/m²)
Container ships	<1000 teu (1st/2nd generation) <3000 teu (3rd generation) <8000 teu (4th generation) >8000 teu (5th/6th generation)	<400 <300 <250 <200
General cargo	≤20000 DWT >20000 DWT	400-700 <400
Oil tankers	≤20000 DWT ≤60000 DWT	<250 <300
VLCC/ULCC	>60000 DWT	150-200
Gas carriers	LNG/LPG	<200
Bulk carriers		<200
RoRo Passenger/cruise SWATH		Usually fitted with beltings(strakes)

PIANC steel thicknesses:

PIANC recommends the following minimum steel thicknesses for fender panel construction:

Exposed both faces	≥12mm

Exposed one face	≥10mm
Internal (not exposed)	≥8mm

Typical panel weights:

The table can be used as a guide to minimum average panel weight (excluding UHMW-PE face pads) for different service conditions:

Light duty	200-250kg/m²
Medium duty	250-300kg/m²
Heavy duty	300-400kg/m²
Extreme duty	≥400kg/m²

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Corrosion Prevention of LGRIG® Steel Frontal Panel

The corrosion prevention of steel frontal panel now adopt hot zinc spraying and painting etc,which is subject to port requirement.Painting includes epoxy paint and polyurethane etc.

ISO EN 12944 is a widely used international standard defining the durability of corrosion protection systems in various environments. The C5-M class applies to marine coastal and high salinity locations and is considered to be the most applicable to fenders.

The table gives some typical C5-M class paint systems:

Paint System	Surface Preparation	Priming Coat(s)				Top Coats			Paint System		Expected durability (C5-M corrosivity)
Paint System	Surface Preparation	Binder	Primer	No.coats	NDFT	Binderr	No.coats	NDFT	No.coats	NDFT	Expected durability (C5-M corrosivity)
S7.09	Sa2.5	EP,PUR	Zn(R)	1	40	EP,PUR	3-4	280	4-5	320	>15y
S7.11	Sa2.5	EP,PUR	Zn(R)	1	40	EP,PUR	3	360	4	400	>15y
S7.16	Sa2.5	CTE	Misc	1	100	CTE	2	200	3	300	5-15y