A band saw proposal should begin with the timber arriving at the workshop and the boards expected to leave it. Maximum diameter alone leaves out log length, handling, feeding, blade maintenance and the way boards are removed. A model can meet one dimension while leaving the intended production process unresolved.

This guide reads the documented records for Shuanghuan’s MJH1200E, YSDMILL’s MJ3210AZ and Nanyang’s MJ319B. The cover shows the MJH1200E. It is a specification comparison, not an independent performance test, safety assessment or recommendation that one machine can replace another.

Keep log capacity separate from wheel diameter

The MJH1200E is a hydraulic horizontal band saw listed for logs up to 1200 mm in diameter. Its standard cutting length is 4500 mm and its listed maximum cutting thickness is 400 mm. These three limits answer different questions and should be checked against the planned incoming stock and cuts.

The MJ3210AZ table lists an 800 mm maximum log diameter and a 1060 mm wheel diameter. The wheel figure is a machine component dimension, not an alternative log capacity. It must not be presented as evidence that the saw accepts a 1060 mm log.

Handle conflicting or shared model descriptions explicitly

The MJ319B record has a 900 mm wheel diameter, but its introductory text and table differ on maximum timber diameter. WoodworkMill therefore leaves that capacity unresolved. Request a dated specification for the exact model and feeding arrangement instead of selecting the most favorable value.

The YSDMILL source heading uses MJ3210Z while the table names MJ3210AZ. The published WoodworkMill record follows the table variant and explains the difference. Include the full variant in the quotation so that the motor, blade and controls are tied to a defined machine.

Compare blades using the appropriate record

The MJH1200E table lists a blade width range of 125 to 150 mm and electric tensioning. The MJ3210AZ lists blade dimensions of 7100 by 125 by 1.15 mm. The MJ319B lists 6350 by 100 by 0.95 mm. These values belong to their individual machines and should not be combined into a general purchasing specification.

Ask the supplier to identify the supplied blade, replacements, maintenance equipment and recommended support for the intended timber. A stated blade size does not establish suitability for every species or finish. Use representative stock when agreeing a demonstration and an acceptable board result.

Specify the handling sequence

For the MJH1200E, ask which hydraulic loading, positioning and clamping functions are included. Request a drawing showing incoming log access and board removal. For the vertical machines, identify the carriage, feed controls and holding arrangement included in the offer.

List the typical and maximum log lengths and diameters, timber species and desired board dimensions. Ask how the complete arrangement handles your smallest as well as your largest stock. Record any separate conveyors, supports or handling equipment so that two offers cover the same work.

Do not turn motor ratings into throughput claims

The records list a 37 kW main motor for the MJH1200E, a 22 kW motor for the MJ3210AZ and a 15 kW main motor for the MJ319B. The MJ319B table also lists 17.25 kW total power. Main and total power are different labels, and none of these figures proves finished output per hour.

A meaningful production proposal needs the cutting pattern, stock condition, feeding and handling times, blade arrangement and accepted surface result. Request those assumptions alongside the motor specification, electrical supply and installation layout. Review the final machine manual and applicable installation requirements with qualified personnel before commissioning.

Build a comparison around the timber route

A useful offer comparison records typical and maximum incoming diameter, log length, the intended board pattern, feed and holding equipment, the supplied blade and how boards leave the cutting area. Keep wheel diameter in a separate machine-dimension field. In this set of records, MJH1200E and MJ3210AZ state different log-capacity limits; MJ319B leaves the conflicting timber diameter unresolved. That unresolved entry prevents a complete maximum-diameter comparison until the manufacturer answers it.

Keep the saw and handling supply visible as separate rows. A carriage, conveyor or hydraulic function may be discussed alongside a saw without being included in the basic offer. Ask which equipment is supplied, which is needed from your existing workshop and who defines the complete layout. A catalogue photograph does not settle those responsibilities or the space needed for the planned log movement.

Record a demonstration without turning it into a general guarantee

Specify the timber species, condition, dimensions and cutting pattern for the agreed sample. Record the machine variant, blade, feed and holding setup, handling steps and the finished boards inspected. Ask the supplier to identify which timing boundary includes loading and board removal. Results on that stock answer a defined job question; they do not establish output on all species, blade life or long-term machine reliability.

When reviewing the offer, reconcile any demonstrated handling accessories with the supply list and obtain the relevant operating and installation documentation. Keep unresolved model labels, blade arrangements and capacity conflicts visible in the comparison. Do not replace an absent answer with the wheel dimension, motor power or a figure from a different band-saw variant.