630 Ton Scrap Metal Shear from China: Real Buyer Guide

The 630 ton gantry shear is the most consequential class in the range, because it is the first machine rated for continuous HMS duty. Everything below it takes HMS occasionally; this class takes it as a diet. That single fact decides more purchases at this tonnage than any other, and this guide is about getting the decision right — including knowing when the honest answer is a different class.

HUAXIN builds the Q91-630 in Tangshan, China, selling factory-direct to yards, dealers and plants that run HMS as routine feed. The numbers below are the published specifications from the product page.

Why the 630 Is the Watershed Class

Continuous HMS is a duty, not a material. HMS 1&2 is dense, irregular and often contaminated, and running it shift after shift demands a different build than running it occasionally: heavier frame, larger cylinders, a hydraulic package sized for sustained load rather than peak bites. In our range, the Q91-630 is the first class specified for that duty — the published continuous boundary is 60 mm plate, with 80 mm as the occasional rating.

For a yard whose feed is HMS-dominant, this is the class where the machine stops being a negotiation with the material. Published typical output is 60 to 80 tons per day, and on a well-fed two-shift operation that is a routine week rather than a good one.

What the Specification Says

Specification	Q91-630
Model	Q91-630
Rated force	630 ton
Typical output	60-80 tons per day
Continuous cutting	60 mm plate
Occasional cutting	80 mm plate
Duty	Continuous HMS, two-shift and heavier

The boundary lines matter here more than at any smaller class, because the buyers reading them are the ones whose feed is heaviest. If your heaviest weekly material sits inside 60 mm with margin, the class fits. If it sits at the line, the Q91-1000 buys margin — and at this duty level, margin is measured in blade life and frame stress rather than in pride.

Who Actually Buys This Class

The honest buyer profile: yards and plants whose feed is HMS-dominant and run continuously, not yards with occasional heavy pieces. Typical output lands at 60-80 tons per day when the crane keeps the box charged — and at this class the crane is usually the constraint, because the machine can now out-feed anything a small yard owns.

If your feed is mixed ferrous with heavy weeks rather than heavy feed, the Q91-500 is the honest answer and we will quote it instead. The 630 earns its money on continuous duty; on lighter feed it is a premium purchase that never pays back.

The Duty Specification Conversation

At this class the duty conversation is the purchase. A machine quoted for two shifts is not the build quoted for three: frame, cylinder seals and hydraulics all change, and the difference shows up in year five rather than year one. Tell us the real shift pattern at quotation — the machine gets built for the duty you describe, not the duty you are planning for.

Blade configuration follows the same logic. HMS feed with contamination wears blades faster than clean HMS, and the blade steel and edge specification for contaminated duty is a different answer. The standard build uses H13 or M6V tool steel at 56-62 HRC, four-edge reversible; declare your feed at quotation and the configuration is confirmed in writing.

What to Confirm Before You Order

• Your feed as percentages — how much of the weekly tonnage is genuinely HMS, and how contaminated it runs.
• Three heaviest weekly items, measured, against the 60 mm continuous boundary, with margin rather than at the line.
• Crane capacity and cycle time, because 60-80 tons per day assumes charged material arriving on schedule.
• Supply voltage, frequency and spare kilowatts, with the starting method agreed with your electrician ahead of the build.
• Foundation drawings to your contractor the week the order is placed, with anchorage matched to continuous duty.
• Discharge arrangement: at this output level, cut material under the box becomes downtime within the shift.
• Blade steel grade and configuration for your actual feed, confirmed in writing at quotation.
• Spare kit and operator training booked with the order — at this duty, wear parts are a logistics plan, not an afterthought.

The Rhythm of Continuous Duty

Continuous HMS is a rhythm rather than a burst. The 630 is built to hold it — that is what the watershed designation means — but the operation has to find the beat. Charge consistently rather than in surges, rotate blade edges on schedule rather than on failure, and keep the discharge clearing at the rate the box delivers. The yards that run this class well treat the machine like a production line with a maintenance window, not like a tool that runs until something stops. That discipline is most of the difference between the published 60 to 80 tons per day and the numbers buyers report when the rhythm slips.

Sizing Against the Neighbours

Below the Q91-630 sits the Q91-500: demolition duty at 50 mm continuous. Above sits the Q91-1000: 100 mm continuous, 100-120 tons per day, and the first class rated for bale cutting.

The 630-versus-1000 decision usually comes down to two numbers: your continuous plate requirement, and whether baled material is part of your feed. Bale cutting starts at 1000 tons in our range — if baled scrap is a daily part of your material, that is a build requirement rather than a preference.

Getting the Machine to Your Yard

Written quotations come back inside two business days, factory direct, with the specification sheet in hand for your electrician and foundation contractor. The deposit starts the build, and standard configurations leave Tangshan 30 to 45 days later; non-standard combinations run longer with the date confirmed in writing.

Foundations, electrical scope and the delivery route all run at your end during the build window, and buyers who parallel-path them are commissioning in the first week after arrival. The document set — invoice, packing list, bill of lading, certificates — is prepared alongside the build, so ask for drafts with the quotation and your broker can classify early.

Commissioning is part of the purchase: our engineer handles leveling, electrical connection, no-load and load runs and operator training, with remote commissioning available on repeat configurations. The machine is CE certified, and the one-year warranty runs on the published maintenance schedule — which at this duty level is not optional work.

When the 630 Is the Wrong Machine

If your feed is not HMS-dominant, this class is over-specified and the 500 or the 400 is the honest answer. If your feed outgrows 60 mm continuous, the 1000 is. And if your real problem is bulky mixed waste rather than heavy sized steel, a shredder belongs in the line — plenty of operations run a shear for the heavy fraction and a shredder for the mixed fraction, in that order.

The watershed class earns its money on the duty it was built for. Anything lighter is a premium you pay for nothing.

Q91-630 Buyer FAQ

Why is the 630 called the continuous HMS class?

Because it is the first class in the range specified for continuous HMS duty — 60 mm plate continuously, 80 mm occasionally. Smaller classes take HMS as an exception; this one takes it as a diet.

What is the typical daily output?

The published figure is 60 to 80 tons per day, assuming the crane keeps the box charged. At this class the crane is usually the constraint rather than the shear.

When should I consider the 1000 instead?

Two signals: your continuous plate requirement runs past 60 mm, or baled material is part of your daily feed. Bale cutting starts at the 1000 ton class.

What power supply applies?

The build covers 380 V, 400 V or 415 V at 50 Hz, with 60 Hz to order, and the starting method gets matched to your transformer at quotation. Confirm with your electrician before the order.

How long does delivery take?

Standard machines ship 30 to 45 days after the deposit clears, and non-standard combinations run longer with the date confirmed in writing. Your foundation and electrical work usually sets the timeline.

What support is included?

One-year warranty on the published maintenance schedule, full documentation with 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 feed composition — HMS percentage and contamination included — your shift pattern and your site supply, and we will confirm whether the Q91-630 is the right class, or point you at the 500 or the 1000 with the reasoning in writing. Quotes return within two business days, factory direct.

Ready to shortlist? Compare the Q91-630 specification against your feed, browse the full shear range, or send our team your material list. The FAQ page carries the warranty, delivery and commissioning details.