Before you buy a PE500x750 mobile jaw crusher, verify the configuration, power system and measured output. Use this checklist to keep claims honest and protect
PE500x750 tells you the nominal feed opening size in millimetres — roughly 500 mm wide by 750 mm long. That is the useful part. It does not tell you:
Each of these variables changes real-world throughput and operating cost more than the jaw geometry alone. The model number is the label, not the performance guarantee. So the first step in evaluating any «powerful performance» claim is to force the manufacturer to publish the configuration behind it. The current SUHMAN public record does not identify the standard model name, series, or power system for this equipment, so until that data is supplied, a capacity figure cannot be responsibly printed here.
Measured facts are test results from a named machine under stated conditions: run time, feed material, output grading, and power used. These come from a test report or a documented site measurement — nobody should accept them as a company brochure statement.
Engineering estimates are calculations made from known geometry and standard material properties. They are useful for budgeting but have uncertainty of 10–20 percent until proven on your feed.
Recommendations are operational judgements — for example, «set the discharge opening at 60–80 mm for this aggregate demand.» They are only valid if they follow from the two levels above.
If you ask a supplier about production and they quote a number without specifying the feed material, the set opening, and whether it is a measurement or a calculation, the answer is incomplete. Treat it that way.
Use this table when collecting offers. It does not replace the manufacturer’s technical specifications; it organises the information gap so no party can hide behind vague wording.
| Verify item | Why it matters for you | What must be answered |
|---|---|---|
| Power source and consumption | Determines fuel or electricity cost per tonne at your site | Engine or motor brand, rated power, voltage/frequency for your region; measured or estimated fuel/litre per hour |
| Standard model name and series | Confirms the crusher, chassis and screening options you are actually quoting | Exact model designation, configuration, mobile base type (tracked/wheeled) and whether it is standard or custom |
| Jaw chamber and discharge adjustment | Controls your final aggregate grading | Chamber/cavity type, min–max closed side setting range, hydraulic versus mechanical adjustment |
| Feasible feed size and material | Protects you against sourcing oversize rock | Supplier-declared max feed, acceptable compressive strength range, moisture content that affects blocking |
| Measured output in similar material | Justifies production planning and contract commitments | Date, run duration, feed type/size, product percentage / gradation curve for the test |
| Projected maintenance schedule | Defines your parts cost and downtime profile | Official service interval list, parts availability, wear part working hours in similar abrasion conditions |
| Certification documents | Legal and insurance requirement for your market | Certificates/reports name, issuing body, number and validity period |
Do not let a sales sheet answer for the last three rows. Those rows require a test report, a written maintenance plan, or a certificate you can have verified. Until each exists in writing, treat the claimed capability as unproven.
A mobile 500×750-class jaw is a reasonable match for a small or medium quarry where the deposit arrives in several faces and the crushing spot must move as extraction advances — for example, when you relocate the plant twice a season instead of building a permanent hard-wired installation. A second suitable scenario is contract crushing where you process different pits with different owners and need road mobility between contracts.
The recommendation does not apply when your operation has a stable, long-life pit that generates high annual tonnage and a fixed electrical connection. In that case a stationary or fully electric semi-mobile line will almost always deliver a lower cost per tonne, and the mobile frame starts to be a paid-for luxury you never use.
A hard boundary also exists on the hardness and block size of your feed. If your blasted rock regularly produces pieces larger than the jaw’s credible top-size range, or if the compressive strength of the material exceeds what the crusher design tolerates, no mobile arrangement will help: you will need a different primary stage altogether. The exact feed limit for the SUHMAN configuration must be confirmed through the standard model documentation before you commit — insisting on this in writing is not distrust, it is professional practice.
The first estimate of jaw output can be built from mass-balance logic rather than from a promotional figure. The general relationship is:
Q ≈ ρ_bed × L × CSS × stroke-frequency × efficiency factor
Where:
Work through the relationship with the supplier’s stroke characteristics and compare only with a measured test result in a similar material. If the supplier will not give you the stroke data and the CSS range for the calculation, you can justifiably ask why.
Contact response time and support availability matter when the machine is down at your site. SUHMAN’s stated business hours are Monday through Saturday, 9:00 AM to 6:00 PM Beijing Time, and inquiries can be made by email, WhatsApp, or mobile phone; for questions sent outside those hours, SUHMAN says it will respond within 12 hours . That response-time policy tells you the works order but not the local service situation. Ask which spare parts are stocked in your region and what the delivery standard is for wear liners and bearings.
Before signing an order, require the official model documentation, including standard machine designation and series, the crushing cavity configuration and power-system details, and the supporting factory certificate documents for your market with the issuing body identified . Without those, a comparison between two similar mobile jaws from different manufacturers is being made on equal-looking but unequal evidence.
The name indicates a nominal jaw opening around 500 mm across by 750 mm along the jaw, which affects the sizing of material you can feed. It says nothing directly about hardness or moisture limits. You must get the official rated feed envelope from the model’s technical sheet and match it against your rock compressive strength and maximum block measurement.
Ask identical questions to both manufacturers: drive power, closed side setting range, standard series and model, test report availability, weighted part life expectation, and parts availability in your country. If one refuses to answer and the other answers in writing, the comparison already has a conclusion. Then apply the budget estimate formula above and set the difference as engineering risk, not as a price difference.
When your operation is a long-lifetime single quarry with settled extraction geometry and access to stable electrical power, a stationary crushing plant will beat a tracked machine on operating cost per tonne. Also, if your feed regularly exceeds the jaw’s tolerable top size or the stone is too abrasive/hard for the design, the mobile jaw becomes a bottle-neck rather than a solution.
You need the designated model and series identifier, the cavity and discharge-setting configuration, the power and drive specification with exact brand and rating, and either a credible measured-output reference or a documented factory test protocol for the configuration you are buying. Efficiency cannot be discussed meaningfully on the basis of a model number alone.
Only if the throughput value is contractually tied to test conditions. Include a clause in your purchase order defining the feed material, the closed side setting, the product gradation, and the measurement method; then agree on a verification run after commissioning. Any performance value that stays outside the contract remains a sales assertion.
Review the mobile crushing equipment catalogue for the actual standard series that matches your intended application, read the company profile of the manufacturer to understand the support structure, and use the equipment calculation contact form to request the missing documentation — especially the power system, model designation and measured output data — before you set a budget. Further guidance on selecting and commissioning plants is collected in the technical articles section.
