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Application of BPW Air Suspensions
BPW Axles have introduced a new suspension beginning of April 2018. The new suspension, called AL II HD (Heavy Duty) has replaced the current SL suspension on □120 axle bodies and the standard AL II. Previously in South Africa, SL suspension was used on the □120x15mm and □150 axle body in a welded axle seat arrangement (see Figure 1). With the introduction of the new AL II HD suspension there will be a reduction in variations as shown in Figure 2. What this means is that there will be now three suspension types used for different applications.
Figure 1: Current arrangements of air suspension on Axle bodies
Figure 2: Arrangements of air suspension on Axle bodies as from 2018
The three suspension types that will be used are as follows:
Table 1 shows a comparison of the current suspensions that BPW offers and in which field of application they are typically used.
Table 1: Comparison of air suspensions
Figure 3: AL II – clamped axle seat arrangement
Figure 4: AL II HD – welded axle seat arrangement
Figure 5: SL – welded axle seat arrangement
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