STAKKAbox™ JMF is a range of modular and structural preformed access chambers that provide a modern alternative to traditionally brick built chambers.

This system provides contractors with a means of constructing access chambers safely, quickly and inexpensively, whilst offering superior build quality, reduced defects and enhanced site safety performance over traditional methods.

STAKKAbox™ JMF is designed for use within the telecommunications market and is available in 102, 104 and 106 sizes .

Due to its twin wall design, individual sections are lightweight meaning they can be manually lifted and stacked on top of each other to reach the specified depth required.

The STAKKAbox™ JMF chamber system also comes with a wide range of X-TRAS™ chamber accessories and AX-S™ access covers to provide a complete network access system.

Using the JMF system, complete chambers can be constructed from excavation to reinstatement in less than one hour.

Features and Benefits
STAKKAbox™ JMF comprises of 150mm deep sections stacked to the specified height on top of a concrete or Type 1 base.

Cover Options
Concrete Infill (B125) & Recessed (B125)

Sub-security Plate
Options for added security

Drop-in Furniture & Steps
Cable management and steps are fitted by dropping the accessories into pre-formed pockets. These allow accessories to be retrofitted after installation without mechanical fixing.

Lightweight
STAKKAbox™ JMF chambers are built by stacking sections to the required depth. Each section weighs under 25kg, making it suitable for a single person to lift under manual handling guidelines.

Rapid Assembly
STAKKAbox™ JMF chambers are significantly faster to install than conventional alternatives, with complete installations typically taking less than one hour. This results in reduced costs for the installer.

Improved Build Quality
Brick built boxes regularly produce variable build quality standards resulting in frequent rejection by Openreach inspectors. The use of STAKKAbox™ JMF eliminates this variability and offers a consistent installation every time.

Easy to Overbuild
JMF can be used to retrofit chambers over an existing network or for replacing chambers that have been damaged or need to be enlarged. Where required, ring sections can be cut to bridge over or around existing networks or obstacles.

All Weather Construction
Unlike with brick-built chambers where freezing temperatures can stop work, JMF can be installed in all types of weather.

Easy to Install
No specialist equipment or plant is required in order to install the chamber and there is no need for specialist box builders.

Integrated Systems
Chambers are built to the required depth by adding 150mm sections. Each ring section is castellated to positively interlock with the unit above and below. Cover options and accessories can then be added to complete the system.

Base Options
A base can be constructed from: 50mm of dry mix concrete on 100mm of compacted Type 1; 150mm of compacted Type 1; 150mm deep concrete base (C20 or dry mix) or 50mm of ready mix concrete on 100mm of compacted Type 1

Easy-cut Duct Entries
Duct entries can be cut as and where required using a hole saw mounted on a cordless drill. The chambers incorporate guides which identify drilling points to ensure correct duct spacing.

Specifications

Dimensions: Internal 725mm x 255mm

Depth per section: 150mm

Typical depth of chamber: 600mm

Weight per section: 6.64kg

Cubis part number: 10901300

Please see datasheet for further details