315 Ton Scrap Metal Shear from China: Specs to Confirm
The 315 ton class is where most growing yards land, and it is also the class where the specification conversation matters most — because the step up from 200 tons is a real step in capability, not a marketing one. This guide covers the Q91-315: what changes at this tonnage, which specifications to confirm before you order, and who the machine is actually built for.
HUAXIN builds the Q91-315 in Tangshan, China, selling factory-direct to yards moving from single-shift to two-shift operation. The figures below are the published specifications from the product page, and they are the numbers we check against a buyer’s material list on the first call.
What Changes at 315 Tons
The Q91-315 is the mid-duty workhorse for growing yards. The published typical output steps from 20-40 tons per day at the 200 ton class to 25-45 tons per day, and the continuous cutting boundary steps from light to medium plate up to 30 mm plate — with 50 mm plate as the occasional rating.
That 30 mm continuous boundary is the number that matters. It means the machine takes medium plate as routine work, all shift, rather than as an exception. For a yard whose feed has outgrown light scrap — mixed ferrous with real plate in it, section steel, the occasional structural piece — this is the class where the material stops being a negotiation and starts being a workload.
The Specifications to Confirm
| Specification | Q91-315 |
|---|---|
| Model | Q91-315 |
| Rated force | 315 ton |
| Typical output | 25-45 tons per day |
| Continuous cutting | 30 mm plate |
| Occasional cutting | 50 mm plate |
| Duty | Two-shift operation, growing-yard feed |
Four specifications deserve confirmation against your own site before the order, and none of them appear on the quotation by default. The chamber or box dimensions against your heaviest pieces — what physically enters in one bite decides your pre-cutting labor. The feeding tank length, because a longer box takes whole members instead of pre-cut sections. The motor rating and starting method against your transformer. And the discharge height against your handling arrangement.
Send your site photos with the inquiry and all four get confirmed in writing at quotation, which is the only cheap time to solve a mismatch.
The Honest Boundary at This Class
Two boundaries are worth stating plainly, because they are where buyers talk themselves into trouble. First, 30 mm plate is the continuous rating — 50 mm is the occasional column, and a yard that plans around the occasional number wears blades early and stresses the frame. Second, continuous HMS duty still does not start here; that remains the 630 ton class and above.
If your heaviest material sits at the top of the 30 mm range with no margin, the honest conversation is about the Q91-400 rather than the 315. We would rather have that conversation before the deposit than after the first wear bill.
Who This Class Is Built For
The Q91-315 buyer profile is specific: a yard that has outgrown light scrap, runs or is moving to two shifts, and processes mixed ferrous material with genuine plate in it. Typical output lands at 25-45 tons per day when the crane keeps up — and at this class the crane question gets sharper, because the machine can now out-feed a shared one.
Build quality follows duty, and this is the class where duty conversations start to matter. A machine quoted for two shifts is not the build quoted for three: frame, cylinder seals and hydraulics all change. Tell us the real shift pattern at quotation, not the one you are planning for next year — the machine gets built for the duty you describe.
What to Confirm Before You Order
- Your three heaviest weekly items, measured, against the 30 mm continuous boundary — margin matters more than the nameplate.
- Chamber and feeding tank dimensions against your heaviest pieces and your crane’s grab.
- Supply voltage, frequency and spare kilowatts, with the starting method agreed with your electrician.
- Foundation drawings to your contractor the week the order is placed, with the delivery route measured at your end.
- Crane capacity and cycle time, because 25-45 tons per day assumes charged material arriving on schedule.
- Blade steel grade and configuration for your actual feed — mixed or dirty material earns a different specification than the standard build.
- The spare kit and operator training, both booked with the order rather than after the first failure.
Moving From One Shift to Two
Most buyers stepping up from the 200 class to the 315 are making a second shift real, and that transition changes operations more than the machine does. The 315 is built for it — the frame, seals and hydraulics are specified for two-shift duty rather than single — but the yard around it has to keep up. Crane scheduling across two shifts, blade planning with the regrind cycle inside the week, and discharge handling that does not become the bottleneck at shift change are all yard decisions rather than machine decisions. Buyers who plan those three alongside the order are running two productive shifts in the first month; buyers who treat the machine as the whole change discover the yard is the constraint.
Sizing Against the Neighbours
Below the Q91-315 sits the Q91-200: lighter feed, 20-40 tons per day, occasional HMS only. Above sits the Q91-400: 40 mm continuous, 35-55 tons per day, the all-round commercial class.
Most buyers at this decision point are choosing between the 315 and the 400, and the tiebreaker is unglamorous: write down the thickest piece that arrives every week. If it sits comfortably inside 30 mm, the 315 is the right spend. If it sits at the line, the 400 buys margin that pays for itself in blade life.
Getting the Machine to Your Yard
Written quotations come back inside two business days, factory direct, with the specification sheet your electrician and foundation contractor can work from. The deposit starts the build; standard configurations leave Tangshan 30 to 45 days later, and non-standard combinations run longer with the exact date confirmed in writing against the order.
The build window is when your site work should be running — foundations, electrical scope, delivery route — because buyers who parallel-path those are commissioning in the first week after arrival rather than the first month. The document set (invoice, packing list, bill of lading, certificates) is prepared alongside the build; request drafts with the quotation so your broker classifies early.
Our commissioning engineer handles leveling, electrical connection, no-load and load runs and operator training, and remote commissioning is available on repeat configurations. The machine is CE certified, the certificate ships with the documentation, and the one-year warranty runs on the published maintenance schedule.
When to Choose Differently
Three signals point away from this class. Your heaviest material is routine 50 mm work — that is 400 ton territory. Your feed is HMS-dominant — that starts at 630 tons. Or your volume consistently runs past 45 tons per day, in which case the next class up is not vanity, it is arithmetic.
And if your material list actually says the 200 ton class, we will say the 200 ton class. The honest answer on the first call is cheaper than the wrong machine in year two.
Q91-315 Buyer FAQ
What is the difference between the 315 and the 200?
Continuous boundary and output. The 315 takes 30 mm plate as routine work and runs 25-45 tons per day; the 200 takes light to medium plate at 20-40 tons per day with HMS only occasionally. The step matters if your feed has genuine plate in it.
Can it handle 50 mm plate?
Occasionally — that is the published occasional rating. Planning around it as a daily diet shortens blade life and stresses the frame. If 50 mm is routine, the 400 ton class is the honest answer.
Does it run continuous HMS?
No. Continuous HMS duty starts at the 630 ton class in our range. Occasional HMS in modest pieces is a different job, and the product page publishes the boundary for each class.
What power supply and starting method apply?
The build covers 380 V, 400 V or 415 V at 50 Hz, with 60 Hz to order, and the starting method is matched to your transformer at quotation. Confirm the details with your electrician before the order.
How long does delivery take?
Standard configurations ship 30 to 45 days after the deposit clears, non-standard combinations longer with the date in writing. Foundations and electrical work at your end usually set the real timeline.
What support comes with the machine?
One year warranty on the published maintenance schedule, full documentation including schematics and foundation drawings, commissioning with test runs and operator training, and a spare kit that can ship with the machine.
Talk to the Factory Before You Decide
Send us your heaviest material list, your shift pattern and your site supply, and we will confirm whether the Q91-315 is the right class — or point you at the 200, the 400, or the 630 with the reasoning in writing. Written quotes return inside two business days, straight from the factory.
Ready to shortlist? Compare the Q91-315 specification against your material list, see the full shear range, or send our team the list. The FAQ page has the warranty, delivery and commissioning details.