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PROFILE: NEV/LIE CHARROLD
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Page 141
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RANGE CHANGING
Neville Charrold, the York-owned tipper body manufacturer, has revised its 2000 series model range. What improvements do the new bodies bring, and how is the tipper market in general faring as we run up to TipCon -1990?
• Last year 1,800 tipping trailers were sold in the UK, with more than nine out of 10 going into operation at 38 tonnes GVW. According to Mansfield, Notts-based Neville Charrold, more than 65% of those tipping trailers were tri-axle units running on wide single tyres.
The Wilcox/Seadyke range of trailers is market leader here with near 25% of the overall business and Crane Fruehauf, with approximately 20% of its cake, is second equal with Craven Taskcr. Don-Bur. Weightlifter and Neville Charrold each hold around 10% of the sector.
Neville Charrold has now decided to revamp its 2000 range of tippers, so called for the broad use of 2000-series axles and Tecair suspensions, with a wide range of new features.
The company says that it has included many important features in the new range as standard fitments that would have been regarded as optional extras in the past. These include: 0 Torsion bar hinges to get rid of the need for bolted hinge plates and add stiffness to the tailgate top rail; O Flush grain hatches with good clamping on the seals; O New lock-bar/deflector plates to keep stone fouling to a minimum; O Full 200mm deep one-piece extruded top rails up to 40% thicker than normal pressed sections and more resistant to damage; O New lights and numberplate bars in pressed alloy; O Rear-access ladders to help drivers walk around for top sheeting; Tecair suspension systems: all of the new 2000 series tippers will be fitted with 11tonne axles with 16mm thick beams.
Neville Charrold has fitted twin levelling valves to the 2000 Series bodies to resist "slow roll" transfer of air in the suspension system and therefore improve tipping stability — 1,500 tippers roll over every year, the company believes.
TOP QUALITY
The widest track available in the new range of tipping trailers is 2.100mm, and other major features include top quality pivot bushes with stainless steel wear plates, heavy-duty U-bolts and twinblade trailing arms.
There are several models in the new 2000 range. The Magnum 2000 was first unveiled at the Scottish IRTE show in 1989. Conceived as a low-height straight-frame tipper. it has the following advantages: O a good tip angle; 0 good discharge; 0 a simple low-stressed chassis; good weight distribution, suited to 3+2 and 2+3 operations.
To reduce front-end height, the "bathtub" type body is "cradled" on the trailer neck. The chassis frame is stepped by 100mm to allow this.
The Magnum 2000 also features a new pin-eye ram inclined at an angle of 30° from the vertical, directing the ram thrust directly on to the coupler for enhanced stability. The front panel of the body is essentially flat and angled at 20° from the vertical to incorporate a wide contoured ram recess. Unlike the previous Magnum design, this allows a standard sheet to be used.
VERY STRONG
The rear frame has also been angled at 20° to give the trailer a balanced look and load discharge. The body was designed by York's engineers to match the computer stress analysis model, and the frame tapers from a maximum of 510mm at the point of its maximum bending moment, just ahead of the first axle. Neville Charrold also claims that the Magnum 2000 chassis is the deepest on the market and torsionally very strong.
Magnums come with tri-axle and tandem-axle chassis and standard 42m3 (55yd3) and 40m3 (52yd3) body volumes.
The body floor is completely flat with a gentle slope from front to rear. It is constructed from 8mm sheet and has all of the advantages of taper body but without the inherent weight distribution problems. Tr-axle and tandem options are available.
The Quarryman 2000 model has a 1,400mm-wide frame, reduced neck height, angled front panels, a compact eyepin assembly and body-side uprights angled to match the front bulkhead. A standard feature is an overpressed 75mm angle on top of the top rail to deflect stones. Its standard carrying capacity is 21m3 (27.5 yd); two and three axle chassis are available.
The Blacktop 2000 tipper has been developed as a sophisticated insulated tipper trailer for carrying hot coated roadstone. The fully-insulated body — including the floormounted expansion joints — allows temperatures to be maintained for longer than 10 hours.
A rear-split tailgate and
Inset lock bar, combined with the discharge tray, enables the trailer to discharge product into Blaw Knox and Barber Greene road pavers. It carries 21m3 (27.5ydi) of material.
Despite its relatively high price tag, the Blacktop has found favour with major road builders such as Tarmac which now operates more than 10 of them. Tandem and tri-axle chassis are again available.
The Marksman and Nimrod 2000 tipping trailers are two new general-purpose stepframc bulkers available with 42m3 (55yd3) bodies as standard and 43.6m3 (57yd3) and 46m3 (60yd3) options. Their frames are 1,400mm wide and torsional stiffness has been boosted by increasing the chassis depth to 440mm. The neck section has been trimmed down to 160mm to reduce front-end height, and the stepdepth cut to 205mm to aid better discharge.
Both the Marksman and Nimrod triaxle bodies are continuously seam-welded with a square monocoque design on the Marksman and a -bath-tub" hooped design on the Nimrod model.
Both types keep "covertub" front-mounted hoists as standard and a new body variant has been developed, called the XC — extra capacity — which places the body floor directly onto the neck mainrails to cut the step-depth to just 125mm. This allows Neville Charrold to offer a 46m" tipping trailer which is only 100mm (4in) higher than a standard 42m3 unit.
IMPROVEMENT
Overall, Neville Charrold reckons that this new 2000 range offers a 38% improvement in tipper stability.
Other standard features on the bodies include anti-lock braking, spring parking brakes, axle cable slings and compensating-foot landing gear.
The Tecair suspension system Neville Charrold has chosen is fitted to all of the tipping trailers except the Quarryman and Blacktop models, which feature Tadchurch rubber suspension. El by Geoff Hadwick