1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174 
Birch goes for bolts
Page 110
If you've noticed an error in this article please click here to report it so we can fix it.
• An unusual 56m1 powder tanker developed jointly by British Alcan and Sutton Bridge-based Metalair, and built on an all-aluminium frame has been added to the fleet of Singleton Birch's transport division, Birch Haulage.
Its specially extruded longitudinals have additional, smaller C-channels on the inner and outer faces to hold mounting bolts used to secure cross-members and components such as the landing legs, mud-wings and front tank rests to the main frame.
These extrusions avoid the need to weld to the chassis, and any resulting distortion. This system costs no more than the standard aluminium channelling currently used, and Metalair expects the extrusions to become the norm.
The tanker, which is being displayed at this year's Tankcon exhibition will be operated at a 2.0 bar tank pressure, but has been tested to 3,0 bar, It features five toploading hatches; tipping is by the front-mounted, five-stage Hyva ram, Metalair's lastest easy-toclean discharge system is fitted, plumbed to the hemiconical rear of the tank to allow a remote, land-based power-pack to tip and discharge the load. With this arrangement, Singleton Birch saves around half-a-tonne in payload on the tank semitrailer, which has an unladen weight of 6.0 tonnes.
Coupled to the company's Birch's ABS and CAGequipped Scania R113, the unit is said to be achieving a 24.75-tonne payload.