SwissPRO chain mortiser
Heavy-duty, powerful, smooth operation

SwissPRO KSP 16/20
Chain Mortiser

"Just sits on the timber and eats wood"

Choice of 110/115 V or 220 V motor!

We designed this chain mortiser specifically for the professional timber framing trade, improving on existing mortisers, building in the features that makes your work much more efficient. Built in Switzerland, for the best quality available anywhere.

Available for mortising depths of 6" or 8 ". With a hard-chromed chain, for longer edge life.

Heavy-duty     Ergonomic    
Reliable     Efficient

On this page:

Video of the SwissPro KSP mortiser in action:

Designed specifically for the professional timber framer

  • Our most rugged, yet ergonomic chain mortiser, designed with the collaboration of our customers. It has the weight, the quality and substance for continuous mortise work.
  • Heavy-duty guide posts made of polished hard-chromed solid steel and space age bushing material that won't clog, bind or wear out.
  • Shock absorption with gas spring. Plunges smoothly into wood and retracts easily from timber.
  • Heavy-duty, Swiss-made high torque motor with soft-start and overload protection.
  • Toggle safety switch for comfortable and safe handling, for right- or left-handed operation
  • Adjustable fence, with large lock lever: easy to lock, easy to release for cross-grain mortising.
  • Choice of imperial or metric measures on unique scales for side-fence, depth stop.
  • Line-of-sight assist with chain/mortise scribe plate
  • Bar/chain tension adjustment stabilized with solid metal key inside reinforced housing.
  • Choice of 6" or 8" depth of cut, (actual depth: +1/2" deeper)
  • Heavy-duty weight and balance
  • Choice of motor:
    • 2200W @ 220V
  • Weight: 29 lbs / 14 kg

Accessories included:

  • Side fence and guide stand
  • Complete mortising set (6" or 8" bar, 28mm wide chain, sprocket, Stauffer grease fitting, choice of 1½" and 2" sets and HC- chains, at no extra charge) for extra 1/2" of depth.
  • Can of "Chain-Fitness" penetrating lubricant
  • Set of wrenches
  • Mortise scribe plate
  • 10m (33') power cord

To purchase additional chainsets, see Mortise Chains .

Compare our SwissPRO KSP 16/20 mortiser with Hema and Mafell chain mortisers

Motor/Transmission SwissPRO 16/20 HEMA ZKS15 Mafell LS 103Ec
Motor Suhner Industrial motor.
2200W @ 220V or 110V available
2000W @ 220 V 2000W @ 220V or 110V
electronic controller yes no no
Motor soft start (buffers motor and transmission) yes no no
Motor removable without dismantling transmission yes no no
Possibility of clogging with wet chips very low very high very high
Chain-set compatible with competitor's mortiser yes yes yes
Bar assembly onto solid metal key (ST-50) - will not bend yes yes no
Chain sizes 28 x 1 1/2 in
28 x 40mm
28 x 50mm
40 x 50mm
28 x 35mm
28 x 50mm
28 x 1 1/2 in
28 x 50mm
Hard chromed chain for double edge life supplied with every machine no optional
Longer bars/chain 6" and 8" depth is standard; 12" on special order no no
Guides SwissPRO 16/20 HEMA Mafell
Guide bushings CNC turned, precise guide bushings of space-age material (ERTALITE) with extremely high wear and tear resistance and dry lubrication performance standard, subject to clogging standard, subject to clogging
Gas spring for smooth return Heavy-duty, larger, stronger, more wear-resistant smaller not applicable; uses compression spring
Ease of changing gas spring easy complex not applicable
Depth of cut with standard bar over 6 1/2" or 8" (12" on special order) 5 7/8" 5 7/8"
Fence Setting SwissPro KSP 16/20 HEMA Mafell
Adjusting, locking and unlocking Simple to use. Locks and unlocks on slightest clamping pressure. Hard to lock and unlock Subject to loosening and breaking
Slide shaft Polished chrome steel for better sliding, no wear & tear N/A N/A
Scales inches or metric (optional) metric only metric only
Positioning sleeve red anodized (simplifies clean view onto scale) N/A N/A
Scales SwissPro KSP 16/20 HEMA Mafell
Simple setting of depth measure Integrated. No ruler or measuring tape necessary not available not available
Depth scale inches (metric on request) metric only metric only
Scale lasered in, won't rub off N/A N/A
Lock screw brass, will not damage guide shafts N/A N/A
Scribe scale

Quick alignment of machine to scribe and mortise. (Aligns chain to mortise scribe, without needing to push chain down to check, saves time)

Available for all standard sizes (inches and metric)

not available not available
Mortise without guide stand Possible with our side fence (optional) yes yes


SwissPRO KSP 16/20 Chain Mortiser

  KSP 16 with
6" bar
KSP 20 with
8" bar
110 V
220 V

To purchase additional chainsets, see mortise chains.

Back to Chain Mortisers

  KSP 16
with 6" bar
KSP 20
with 8" bar
110 V
220 V

Price (USD) includes:

  • mortiser guide stand,
  • 1½" or 2" chainset,
  • hard-chromed chain
  • chainfit lubrication.

clamp detail of SwissPRO chain mortiser
Rugged side fence, easily locked and opened

detail of SwissPRO chain mortiser
Mortise scribe plate

another detail of chain mortiser
Depth stop and shock absorber

Timber Frame ToolsChiselsSwissPRO Chain mortiserSharpening stonesDario bandsawDrill bits and augersAvola circular bench sawsPortable bandsaw for woodMortiser chains and service
PLEASE NOTE: We are working on a new website with an improved secure shopping experience. Our old checkout still works, but as your browser will warn you, the security certificate has expired. We would be happy to take your order over the phone at 1-800-350-8176 OR e-mail your order at , including your phone number, and we will phone you for payment.