The Bernardo AD 310 S – 400V planer-thicknesser offers a planing width of 310 mm, a jointer table of 1,610 mm, a spiral cutterblock Ø 95 mm with 52 TCT inserts at 4,300 rpm, a maximum thicknessing height of 225 mm, a feed rate of 6 m/min, and a 3.0 kW three-phase 400V motor. It provides up to 50% noise reduction and a cutting edge life up to 20 times longer than HSS knives. Manufactured in Austria, distributed in Italy by Krollit as the official Bernardo distributor since 2007.
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Planing width (jointer): 310 mm
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Cutterblock: spiral Ø 95 mm – 52 TCT inserts – 4,300 rpm
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Thicknessing height: 5 – 225 mm
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Thicknessing feed rate: 6 m/min
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Motor: 3.0 kW S1 / 4.2 kW S6 – 400V three-phase
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Noise reduction: approx. 50% vs HSS knives
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Weight: 295 kg
Who uses the AD 310 S and for what
The Bernardo AD 310 S is the spiral cutterblock version of the AD 310: same structure, same motor, same weight, but with 52 TCT inserts instead of 4 HSS knives. The choice between AD 310 and AD 310 S depends almost exclusively on the frequency of maintenance desired: those who consider knife sharpening an acceptable routine choose the lower-cost AD 310; those who want to almost completely eliminate machine downtime for cutting edge maintenance choose the AD 310 S. In Krollit customers' workshops, it is chosen by joineries with 6-8 hour shifts on mixed woods, where the time spent on traditional sharpening impacts productivity.
52 TCT inserts: why so many
The Ø 95 mm cutterblock of the AD 310 S holds 52 inserts in a helical, staggered arrangement: each insert cuts only a small section of the workpiece per rotation, with a progressive entry angle that eliminates harmonic vibrations. The result is a surface with superior cutting fineness compared to straight knives, less tear-out on oblique grain, and a significantly lower noise level, measurable at 10-15 dB less than the HSS version. Each insert has 4 cutting edges: when one edge wears out, it is rotated by 90°.
Krollit logistics and support
Bernardo shipping in 5-9 business days (7 days to the South). Original Bernardo spare parts available from stock with 3-5 business day shipping. Customer support available in Italian.
Who is the Bernardo AD 310 S – 400V for?
| Profile |
Compatibility |
Reason |
| Passionate hobbyist |
Suitable |
Heavy professional machine (295 kg, three-phase). For hobby use, TCT is appreciated for minimal maintenance, but the cost is higher than the AD 310 HSS. |
| Small joinery / craftsman (1-5 employees) |
Recommended |
The time saved on cutting edge maintenance recoups the additional investment compared to the AD 310 HSS in about 12-18 months of professional use. |
| Continuous / industrial production |
Recommended |
For 6-8 hour shifts, TCT virtually eliminates downtime for sharpening. For even more intensive production, consider the ADM 300 with a helical roller. |
Not suitable for: workshops without a 400V three-phase system; those who primarily work with straight knives and prefer not to change technology; workpieces over 310 mm wide (consider AD 410 S).
Jointer (surface planer)
| Specification |
Value |
| Planing width |
310 mm |
| Table length |
1,610 mm |
| Table height |
910 mm |
| Cutterblock – diameter |
Ø 95 mm |
| TCT inserts |
52 reversible pcs (4 cutting edges/insert) |
| Cutterblock speed |
4,300 rpm |
| Fence |
1,110 × 150 mm |
| Fence tilt |
90° – 45° |
| Max. depth of cut |
3 mm |
Thicknesser
| Specification |
Value |
| Working width |
310 mm |
| Passage height (min–max) |
5 – 225 mm |
| Thicknessing table length |
750 mm |
| Max. depth of cut |
5 mm |
| Feed rate |
6 m/min |
Motor and power supply
| Specification |
Value |
| Motor power S1 (100%) |
3.0 kW (4.0 HP) |
| Motor power S6 (40%) |
4.2 kW (5.7 HP) |
| Power supply |
400V – three-phase |
| Dust extraction outlet |
Ø 100 mm |
Dimensions and weight
| Specification |
Value |
| Machine dimensions (L × W × H) |
1,610 × 900 × 1,150 mm |
| Net weight |
295 kg |
Compliance and safety
| Specification |
Value |
| Marking |
CE |
| Directive |
Machinery Directive 2006/42/EC |
| Safety devices |
ON/OFF switch with undervoltage release, cutterblock guard, anti-restart lock |
Standard equipment
- Spiral cutterblock with 52 mounted TCT inserts
- 5 spare TCT inserts
- Safety push block
- Setting gauge
Frequently Asked Questions
What is the difference between AD 310 and AD 310 S?
The AD 310 mounts 4 HSS knives on the Ø 95 mm cutterblock. The AD 310 S mounts 52 TCT inserts on the same cutterblock. Structure, motor, dimensions, and weight are identical. TCT offers: approx. 50% noise reduction, 10-20 times longer cutting edge life, maintenance by rotation/individual replacement without disassembling the cutterblock. The cost of the AD 310 S is higher; the time saved in maintenance recoups it in 12-18 months of full-shift professional use.
With 52 inserts, is replacement complicated?
No. The inserts are not replaced all at once. In normal use, 1-3 inserts are dealt with at a time, those in the most stressed positions. The procedure is identical regardless of the number of inserts: hex key, 2 minutes per insert, no cutterblock disassembly. The 52 inserts mean more cutting points distributed on the cutterblock, higher surface quality, not greater maintenance complexity.
Does the AD 310 S work on all wood types?
Yes, with superior results to the HSS version on almost all woods. Particularly appreciated on: hard woods with difficult grain (oak, ash, walnut) where the helical cut reduces tear-out; resinous woods (pine, larch) where resin accumulates less on TCT inserts than on HSS knives; MDF and panels with glues where TCT lasts 10-20 times longer than HSS. On very exotic and siliceous woods, TCT insert wear is faster than usual but remains manageable.
What dust extractor is needed for the AD 310 S?
The dust extraction outlet is Ø 100 mm. With a 310 mm width, a dust extractor with a minimum airflow of 600-800 m³/h is needed. The spiral cutterblock produces chips of a different shape than straight knives, smaller and more homogeneous, which are easily extracted even with medium-capacity systems. Bernardo DC 300 and DC 600 are compatible.
How much space is needed in the workshop?
The machine footprint is 1,610 × 900 × 1,150 mm. For moving workpieces, clear space of at least 2.5 m in front and behind is needed. At 295 kg, adequate means for unloading are required: check access (minimum door width 1.2 m).
