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DZ Series · Benchtop ASME B16.25 EN ISO 9692-1

DZ Benchtop Plate Edge Milling Machine

Compact stationary edge miller with motorized auto-feed for plate prep on small-to-medium workpieces. Operator pushes the plate into the track — the machine grips, propels and mills a cold V/Y bevel at Ra 3.2 – 6.3 μm surface finish. 80 – 150 kg cast base damps vibration for repeatable cuts across long production runs.

Plate thickness
2 – 50 mm
Bevel width
Up to 20 mm
Bevel angles
30° – 75°
Surface finish
Ra 3.2 – 6.3 μm
TYPICAL REPLY · 1 WORKING SHIFT (GMT+8)
01 Model Comparison

Pick your size — 2 models in the series.

DZ-10
Standard · 2 – 40 mm
DZ-20
Heavy-duty · 3 – 50 mm
Plate thickness 2 – 40 mm3 – 50 mm
Bevel angle range 30° – 60°30° – 75°
Max bevel width 18 mm20 mm
Min plate width > 20 mm> 30 mm
Feed speed 0 – 1200 mm/min0 – 1500 mm/min
Motor power 2200 W · 380 V2200 W · 380 V
Spindle speed 2880 r/min2880 r/min
Net weight 80 kg150 kg
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02 Working Principle

Why cold milling beats grinding on plate weld prep

Conventional plate-edge prep on small parts is done with an angle grinder or a torch — both leave a heat-affected zone (HAZ), uneven bevel angle, and surface oxidation that the welder has to wire-brush off before laying the root pass. The DZ Series replaces both with mechanical milling: a multi-insert carbide cutter at 2880 r/min trims a precise, repeatable V or Y bevel along the plate edge at constant feed. Surface finish arrives directly at Ra 3.2 – 6.3 μm — well within ASME B31 weld-prep surface requirements — and there is no thermal damage to the parent metallurgy. The 80 – 150 kg cast base is what makes consistent finish possible across a long production run; lighter benchtop imitators accumulate vibration error that destroys insert life and surface quality within minutes.

DZ Series · Benchtop working principle diagram
03 Key Features

Built for the job site.

// 01
Cold milling — no HAZ, no oxidation
Mechanical cutting at moderate spindle speed preserves parent metallurgy on stainless, aluminum and alloy plate. No post-bevel wire-brushing or pickling required for code welding.
// 02
Auto-feed at 1200 – 1500 mm/min
Motorized feed grips and propels the plate at constant rate. Operator only loads the plate at the entry side and removes it at the exit — bevel uniformity is operator-independent.
// 03
30° – 75° adjustable bevel angle
Tool-head angle locks at standard V (30° – 37.5°), Y (≥ 45°) and J-prep angles per ASME B16.25 / EN ISO 9692-1. Quick swap between weld geometries on the same machine.
// 04
Ra 3.2 – 6.3 μm directly off the tool
Mirror-finish surface ready for orbital welding and code-compliant manual welding without secondary preparation. The cutter geometry — not operator skill — determines the result.
// 05
80 – 150 kg cast-iron base
Massive damping base eliminates chatter on stainless and Cr-Mo work. Surface quality stays consistent across an 8-hour shift — what separates a production machine from a workshop toy.
// 06
2880 r/min spindle
High-speed spindle on a robust gearbox optimized for carbide-insert tooling. Insert life on stainless typically 200 – 400 m of cut per insert at standard duty.
06 FAQ

Common questions about the DZ Series · Benchtop.

Can't find your answer?

DZ-10 or DZ-20 — which should I order?
DZ-10 (80 kg, 30° – 60° bevel) for general fabrication of plate up to 40 mm — the workhorse for bracket and small-weldment shops. DZ-20 (150 kg, 30° – 75° bevel) when you need plate up to 50 mm or steep bevel angles for J-prep weld geometry. DZ-20 also handles thicker stainless work without the spindle bog-down that limits DZ-10 above 35 mm wall.
How is this different from the DMM-20D tabletop machine?
DZ is a benchtop machine — 80-150 kg, plate fed manually into the track, sized for bracket and small-shell production. DMM-20D is a heavier tabletop unit (550 kg) with independent feed motor and 4 kW main drive — sized for batch production of larger or thicker workpieces. Crossover is roughly plate width 200 mm and length 1 m: above that, the DMM-20D's heavier feed system and larger work envelope earn their cost.
Why not just use an angle grinder?
Cost per joint is what kills hand-grinder workflow: a skilled operator takes 2 – 5 minutes per meter of weld prep, plus rework on inconsistent bevels. The DZ runs 1 – 1.5 m/min directly off the tool with no rework. Payback versus grinder workflow is typically 3 – 6 months at any volume above ~5 m of weld prep per shift.
Does it work on aluminum and copper?
Yes — change the carbide insert grade per material (K-grade for cast and non-ferrous, P-grade for carbon, M-grade for stainless). Aluminum runs at high feed and produces stringy chips that need clearing more often; copper runs slower to avoid built-up edge on the insert.
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