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Safety grids

Safety grids for functional or decorative use are suitable for any environment. Due to the wide range of varieties on offer, they guarantee a solution in terms of their great stability, grip, durability and drainage qualities as well as their use as a means of passage or the range of lighting options.

Safety grids

PS-CRANT

PS-CRANT safety grid stand out for its anti-slip serrated surface qualities. It is very well suited to the automotive, construction and industrial sector.

Maximum lengths:

  • Untreated or galvanised steel: 6,000 mm.
  • Untreated or pickled 304 or 316 stainless steel: 2,000 mm.
  • Aluminium: 6,000 mm.

Standard widths:

For the full range of materials and finishes: 120 mm / 180 mm / 240 mm / 300 mm / 360 mm / 420 mm / 480 mm.

Standard height:

For the full range of materials and finishes: 40 mm / 50 mm / 75 mm.

Technical drawing PS-CRANT

PS-PERF

PS-PERF safety grid has excellent grip due to the perforations at the top which allow liquid to drain through.

Maximum lengths:

  • Untreated or galvanised steel: 6,000 mm.
  • Untreated or pickled 304 or 316 stainless steel: 2,000 mm.
  • Aluminium: 6,000 mm.

Standard widths:

For the full range of materials and finishes: 150 mm / 200 mm / 250 mm / 300 mm.

Standard height:

For the full range of materials and finishes: 30 mm / 40 mm / 50 mm / 75 mm.

Technical drawing PS-PERF

PS-FERM

PS-FERM safety grid is perfect for areas to which access is restricted and where traffic safety must be guaranteed (this is the only product in our range which has no openings to see through).

Maximum lengths:

  • Untreated or galvanised steel: 6,000 mm.
  • Untreated or pickled 304 or 316 stainless steel: 2,000 mm.
  • Aluminium: 6,000 mm.

Standard widths:

For the full range of materials and finishes: 150 mm / 200 mm / 300 mm / 400 mm.

Standard height:

For the full range of materials and finishes: 40 mm / 50 mm / 75 mm.

Technical drawing PS-FERM

PS-OVA

PS-OVA safety grid has a very high load-bearing capacity. This kind of grid is often used for facade cladding.

Maximum lengths:

  • Untreated or galvanised steel: 6,000 mm.
  • Untreated or pickled 304 or 316 stainless steel: 2,000 mm.
  • Aluminium: 6,000 mm.

Standard widths:

For the full range of materials and finishes: 150 mm / 200 mm / 250 mm / 300 mm.

Standard height:

For the full range of materials and finishes: 30 mm / 40 mm / 50 mm / 75 mm.

Technical drawing PS-OVA

PS-OFF

PS-OFF safety grid has the same advantages as PS-PERF safety grid. It grips extremely well due to the perforations stamped at the top end which allow liquid to drain through.

Maximum lengths:

  • Untreated or galvanised steel: 6,000 mm.
  • Untreated or pickled 304 or 316 stainless steel: 2,000 mm.
  • Aluminium: 4,000 mm.

Standard widths:

For the full range of materials and finishes: 150 mm / 200 mm / 250 mm / 300 mm.

Standard height:

For the full range of materials and finishes: 40 mm / 50 mm / 75 mm.

Technical drawing PS-OFF

Stair treads

JK Technic offers a wide range of stairs in safety grids with the following stamps:

PS-CRANT

In stock

PS-PERF

In stock

PS-OFF

On demand

PS-OVA

On demand

PS-FERM

On demand

Dimensions for drill holes in stair risers

Height / Tickness : 50 / 2 mm.

Dimensions : 800 x 300 mm / 1000 x 300 mm / 1200 x 300 mm.

Tread width
in mm

from
150
to
159
from
160
to
169
from
170
to
179
from
180
to
189
from
190
to
199
from
200
to
249
from
250
to
279
from
280
to
309
from
310
to
339
from
340
to
369
Dimensions d
in mm
70 80 90 100 110 120 150 180 210 240

 

Other dimensions for drill holes in stair risers on request.

Characteristcs

Method of manufacture

Manufactured using techniques that ensures a consistent production quality, JK Technic safety grids meet current safety standards. JK Technic safety grids are manufactured with tolerances in accordance with the RAL-GZ 639 standards.

Materials

  • S235JR steel as per EN 10025 standards.
  • 304 (1.4301) or 316Ti (1.4571) stainless steel.
  • AlMg3 aluminium.

Surface finishes

  • Untreated or galvanised steel.
  • Untreated or pickled stainless steel.
  • Untreated, pickled or anodized aluminium.

Thicknesses

  • Untreated or galvanised steel: 1.5 mm / 2 mm / 2.5 mm.
  • Untreated or pickled 304 or 316 stainless steel: 1.5 mm / 2 mm.
  • Aluminium: 2 mm / 2.5 mm / 3 mm.

Technical infos

Structures

 

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MESH

Spacing between bearing bars (BB) and transverse bars (TB). Mesh created in this way has two characteristics: mesh width and mesh centre spacing (pitch).

  • Mesh width: the width of the opening that is between the BBs and TBs
  • Mesh centre spacing (pitch): the distance between the centre of BBs and TBs (for example, the distance between the centre of one bearing bar and the centre of the nearest adjacent bearing bar)

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MESCH GROUP/TYPE 

 Mesh is made up of two values (in mm), where the first dimension is the distance between adjacent bearing bars, and the second dimension being the distance between adjacent transverse bars (for example: 33.33 x 33.33; 33.33 x 11.11; 55.55 x 55.55; etc.).

For convenience’s sake, the term “mesh gauge” is more frequently used (for example: 30 x 30 - 30 x 10 - 50 x 50 - etc.)

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BEARING BARS (BB)

Straight rods bearing the weight and arranged in rows at right angles to the transverse bars and supports. 

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TRANSVERS BARS OR CROSS BARS (TB)

Arranged at right angles to the bearing bars, and bonded to the bearing bars by the exertion of high pressure (press-locked grating) or by electrowelding (press-welded grating). The transverse bars are manufactured respectively in “straight metal” or as square, twisted bars.

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BB AND TB GAUGE

 this is defined by two values (in mm), where the first corresponds to their height and the second to their thickness. Gauge examples: 30 / 2; 30 / 3; 40 / 3; etc...

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RANGE

Gap between the supports on which the ends of the bearing bars rest.

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IMPERMEABILITY - SECURITY BARS

security mesh uses the following mesh gauge: 30 x 19; 19 x 30; 19 x 19; etc. It is recommended for industrial environments (14122 standard) and allows nothing exceeding a 20 mm diameter ball to pass through it.

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SUPPORT BRAKET

Bracket welded to the ends of the grating rendering it suitable for certain uses (for example: shelving, guttering).

Material

 

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STEEL

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STAINLESS STEEL

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ALUMINIUM

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FRP

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RUBBER

Finishes

 

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"T" BANDING BAR

 Bar which forms the outer frame of the panels.

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"FLAT" BANDING BAR

 Bar which forms the outer frame of the panels.

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TOE PLATE

Straight metal welded onto the end of the grating

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RAISED BORDER

Straight metal welded onto the end of the grating

Serration

 

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SIMPLE ANTI-SLIP SERRATION ON BB

Various types of serration can be applied to bearing and/or transverse bars. Please note that this double serration option (for BBs as well as TBs) is only applicable to press-locked grating. Serration can only be applied to bearing bars for press-welded grating.

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SIMPLE ANTI-SLIP SERRATION ON TB

Various types of serration can be applied to bearing and/or transverse bars. Please note that this double serration option (for BBs as well as TBs) is only applicable to press-locked grating. Serration can only be applied to bearing bars for press-welded grating.

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DOUBLE ANTI-SLIP SERRATION ON BB AND TB

Various types of serration can be applied to bearing and/or transverse bars. Please note that this double serration option (for BBs as well as TBs) is only applicable to press-locked grating. Serration can only be applied to bearing bars for press-welded grating.

 

Specific applied standards

 

ISO 14122 : Permanent means of access to machines and industrial plants

ISO 14122-2 : Working platforms and walkways

ISO 14122-3 : Stairs, ladders and handrails

RAL-GZ 638 : Manufacturing tolerances for gratings

RAL-GZ 639 : Manufacturing tolerances for safety grids

EN ISO 1461 : Galvanisation requirements

P98-350 : Integration of disadvantaged people

EN 10025 : Steel standard

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