Which factors should be considered before buying a corrugating machine?(2)
2. Maximum operating speed
The selection principle for the high-speed corrugator line should take into account the degree of automation of each single machine, meanwhile, factories should pay more attention to the overall corrugated board production line matching and coordination. For instance, equipped with Auto Roll To Roll Splicer Machine(according to the linear velocity, choose a suitable speed of Auto Splicer, equipped with quantity according to their own economic conditions), the positive pressure card cartridge Single Facer (Corrugated Roller change convenient, stable running, high speed), the production control system, internal rising collet (in order to meet the demands of safety, must choose more Brake Pad), Thin Blade Slitter Scorer (in order to facilitate rapid change orders, equipped with 2 sets), slitter equipped with three kinds of scoring roll (convex to concave, convex, convex to the flat), spiral crossing cutter, automatic glue making system, gluer (use of touch pressure roll rather than roller pressure).The number of Double Facer hot plate to match the speed of the corrugator line (the drying part using a spring-type hot plate, of course, the advantages and disadvantages of condensate steam trap must be valued) and so on.
At present, most domestic suppliers can produce corrugated cardboard carton packing production line(The line include Mill Roll Stand track,mill roll stand,preheating cylinder,single facer,auto splicer,overhead bridge,auto adjust machine,tension adjust machine,Glue Applying Machine,double facer,heavy duty drive,Slitter Scorer,NC Cut Off Machine,auto stacker) with a maximum speed of 200m/min and below. The price of standard configuration is about $110,000.
If the speed of 200m/min-300m/min is needed, then domestic excellent suppliers and suppliers of Taiwan brand can produce. The standard configuration price is relatively high, generally between $1,400,000 and$ 2,500,000.
Table 2:Corrugator Supply in the market under Different Speed
If 300m/min and above speed is required, the corrugator line produced by a few excellent suppliers in China and Taiwan can reach this speed. While the speed 300m/min and above produced by foreign suppliers has a wider range of models. In terms of production efficiency, the higher the speed corrugator line, the better.The higher speed means that the production of higher output, and the increase in unit output and efficiency will certainly reduce the paperboard production of coal, electricity and other unit consumption and other labor, financial and other costs.
However, high-speed corrugator line has two points to focus.First,corrugator line speed is too high, the variable cost of paperboard production such as raw paper purchase costs will rise, because the high-speed assembly line often put forward special requirements on paper, such as tensile strength, moisture content.Second, the high production speed of cardboard quality and scrap rate of effective control is also a challenge(Sheets Feeding Machine can zero damage to cardboard to reduce material waste).Because corrugator line must be supplied with a higher steam temperature to maintain a relatively high running speed, if temperature too low cardboard will be soft.And in the production state of high temperature, once there is a speed fluctuation will inevitably lead to cardboard bending up and down warping, resulting in a waste of brittle. At the same time, at high speed, if there are breaking paper and other circumstances, it will cause loss multiplied.Therefore, before the purchase of high-speed corrugator, cardboard factory in the raw paper purchase, operator skills and other aspects to make full preparation.
