متطلبات تركيب آلة تقطيع البلاستيك: المساحة، والطاقة، والأساس، والأمور الثلاثة التي ينساها المشترون

The short answer: a standalone single shaft shredder needs four things settled before the truck arrives — floor space roughly three times the rotor width in length, a three-phase supply sized for the main motor plus the hydraulics plus start-up surge, a floor that carries 2.8 to 14 tonnes, and enough headroom to feed it. Get those four right and commissioning is a day’s job. Miss one and you are pouring concrete or chasing an electrician after the machine is already sitting in your yard.

I have lost count of how many customers call me the week after delivery to ask why the shredder still isn’t running. It is almost never the machine. It is a roller door 200 mm too low, a slab poured for a 3-tonne press, or a supply that trips every single time the main motor kicks in. On paper these are small items. On site they cost you a fortnight.

This is the checklist I walk people through before they sign. Every number below comes from the single shaft range we build in Yuyao, so you can plan against real specifications instead of a brochure drawing.

The four numbers to check before you sign

Nothing on this list is exotic. It is just easier to sort out with a tape measure than with a machine already on your floor.

1. Floor space: what one shredder really occupies

The working width of a shredder is the rotor width, and that is the number people plan against. It is not the number that matters for floor space. The drive end, the hydraulic station and the pusher ram all hang off the frame.

What I tell customers:

• Leave 1 m clear on the drive end so a fitter can get to the motor and the belt guard.
• Leave 1.5 m clear at the discharge for a conveyor or a bin.
• Leave enough room to swing the screen cradle out. This is the one everybody forgets. If the screen cannot come out, your operator will hate this machine for the next ten years.

Two hard numbers from our range, measured, not estimated:

Note the SC800 height. A 2.8 m machine does not go through a standard 2.4 m roller door standing up. We have had to tip one on its side to get it into a workshop. It survived, but nobody enjoyed the afternoon.

For the S Series I do not publish one generic footprint, because the drive side changes with motor size — an S600 with a 22 kW motor and an S1800 with two 90 kW motors are not the same animal. Ask us for the dimension drawing for the exact model you are pricing. It takes one email.

2. Power: the nameplate is not the whole story

Here is the part that catches people out. The motor power on the spec sheet is the main rotor drive. It is not what you need to supply, because the hydraulic station that runs the pusher is a separate, continuously running motor.

Three practical notes:

• Size the supply for the connected load, then add margin for start-up. A 90 kW rotor motor drawing full inrush on a weak supply will brown out your lights and drop the hydraulic contactor. On anything from the S1200 up, talk to your electrician about a soft starter or star-delta start.
• The hydraulics run the whole shift, not just when you feed. That 5.5 or 7.5 kW is not a rounding error in your running cost. If you want the full picture on what a shredder costs you per month, I broke it down in plastic shredder machine cost.
• Voltage and frequency are built to your country. Three-phase is standard; tell us your supply when you order and the machine arrives wound for it. Do not assume, and do not plan on a transformer after the fact.

3. Weight and floor loading

A 14-tonne machine standing on four feet is not the same load as 14 tonnes spread across a pallet. From the S1200 upward I want to see a ground-floor concrete slab. Not hollow-core, not a mezzanine, not a slab somebody poured fifteen years ago for a smaller press.

Then there is unloading. Check three things against your site, not against the machine:

1. Forklift capacity. A 6800 kg shredder needs more than a 5-tonne truck-mounted forklift.
2. Door opening. Height and width, measured at the narrowest point, including the frame.
3. Route in. Floor drains, pits, and that one column everybody walks around.

4. Feeding: how big a piece you can actually drop in

The useful rule of thumb for the S Series: the widest single piece you can feed is roughly the rotor width minus 100 mm. So an S600 with a 600 mm rotor takes pieces up to about 500 mm, and an S1800 with an 1850 mm rotor takes a lot more than that.

Feed openings from the SC range, measured:

Two questions to answer before delivery:

• How does the material get in? Hand loading works for a small unit fed with offcuts. If you are running purge lumps or thick-walled mouldings all shift, you want a conveyor or at least a loading platform. If you are dealing with big purge lumps specifically, the sizing question is different and I covered it in purge lumps shredder: how big a lump one machine can take.
• Where does the shredded material go? Straight into a bin, onto a belt, or into the next machine. Decide now, because the discharge height sets your conveyor length.

5. One machine or two? The screen decides it

This is where the installation plan and the buying decision meet.

Our SC units run two stages in one frame: a shredder stage with a Φ50 screen, then a crusher stage with a Φ10 screen. That is the honest answer if the material has to come out near 10 mm for a washing line or an extruder feed.

If 30–50 mm chunks are fine — and for a lot of washing lines and most extruder feed throats, they are — then one standalone shredder is enough, and you save the footprint, the second motor and the second conveyor. That is the case I make most often to people starting out. One machine in, one pile out, and you can always add a crusher later when you actually need 10 mm instead of deciding today that you might.

I wrote up the full decision in two machines or one: shredder + crusher vs integrated unit if you are still on the fence.

Pre-delivery checklist

Take this to the site with a tape measure.

That last one is not an installation item, but it is the difference between a machine that earns and a machine that waits. If you want the throughput numbers to size item 9, they are in plastic shredder machine capacity.

الأسئلة الشائعة

How much floor space does a plastic shredder need?

Plan for the machine footprint plus 1 m clear at the drive end for motor access and 1.5 m at the discharge for a conveyor or bin. Our SC600 sits on 2100 × 1680 mm; the SC800 needs 2800 × 1950 mm. For the S Series, ask for the dimension drawing of the exact model, because the drive side changes with motor size.

What power supply does a plastic shredder need?

Three-phase, sized for the main motor plus the hydraulic station. The S600 is 27.5 kW connected, the S1400 is 97.5 kW, and the S1800 is 187.5 kW. Add margin for motor start-up, and from the S1200 upward use a soft starter or star-delta start.

Can a plastic shredder go on a mezzanine floor?

Under about 5 tonnes, sometimes. The S600 at 2800 kg and the S800 at 3700 kg are realistic. From the S1200 at 6800 kg upward I want ground-floor concrete. Shredders put shock loads into the floor when the rotor bites, which is not the same as static weight.

How big a piece of plastic can one shredder take?

About the rotor width minus 100 mm. An S600 with a 600 mm rotor takes pieces up to roughly 500 mm; an S1800 with an 1850 mm rotor takes far more. Hopper mouths on the SC600 and SC800 measure 800 × 500 mm and 850 × 630 mm.

Do I need a crusher as well as a shredder?

Only if your output has to be near 10 mm. If 30–50 mm chunks feed your washer or your extruder throat, one standalone shredder does the job and saves you the second machine, the second motor and the conveyor between them.

How long does installation take?

If the four checks above are done before delivery, a single machine is unloaded, levelled, wired and test-run in a day. Every delay I have seen came from concrete, electrics or access — never from the machine.

Want the drawing before you commit?

Tell me three things and I will send the dimension drawing and the power spec for the right model: what you are shredding, how big the biggest piece is, and what output size you need downstream.

If you are still deciding whether a standalone unit is the right first machine, start with single shaft shredder: how to tell if it’s the right machine, or read plastic shredding equipment: what a standalone shredder actually removes from your scrap bill.

Browse the S Series single shaft shredder for the full range, the SC Series if you want shredding and crushing in one frame, and the C Series crusher if you already shred and only need the second stage.

ستريملاين إيكو تيك designs and manufactures industrial shredders, granulators, washing lines and complete plastic recycling systems. The company is based in Yuyao, Zhejiang, China, and exports to more than 30 countries. Send us a photo of your scrap and your floor plan — we will tell you which model fits and what it needs to run.