This page is an automatic translation of the German original. The German text is the binding version. View German original

Safety knife martor Secumax 350

Art. no. UM350001

At a glance

Protective hook in front of the blade
ergonomic squeeze-grip
for right- and left-handed users
GS-certified

UM350001 Martor-Sicherheitsmesser-SECUMAX-350-CURT-tools_1600

9.99€ net · excl. VAT

Prices in EUR, net – for business customers only. Shipping: €14 flat rate within Europe, free of charge from €300 goods value (Shipping costs, in German) · Delivery time on request

Quantity discount	net / pc.
from 20 pcs. (−3 %)	9.69€
from 50 pcs. (−6 %)	9.39€

Request a quote by email Order in our German online shop

or call us: +49 (0) 211 / 97174619

Secumax 350 – safety level 3 BoxCutter from martor

BoxCutter | safety level 3

Highlights

Blade always safely concealed: through the protective-hook blade head with plastic overmould — the cutting edge is never exposed
Robust, light handle: thanks to glass-fibre-reinforced plastic (GRP) for lasting use at only 37 g
Left- and right-handed users: through a design that can be operated directly from both sides, without conversion or tools
High initial sharpness, long edge life: thanks to the KM3550 blade head made of premium carbon steel — approx. 1,200 cuts per head
Independently tested safety: the GS mark confirms tested quality and protective effect

Applications & cutting materials

Which materials is this knife made for — and where does it reach its limits?

Particularly suitable

Cardboard – lids/flaps

Stretch film

Adhesive tape

Strapping

Suitable

Big bags

Opening film/paper sacks

Opening blister packs

Rubber

Not suitable Cardboard – cutting to size · Cardboard – octabins · Free-hanging film/paper web · Sticking on rolls · Stripping the outer layer of rolls · Polystyrene (EPS) · Foam materials

Knife know-how

The martor Secumax 350 is a safety level 3 BoxCutter for daily use in logistics and retail. The fully concealed blade, the ergonomic GRP SoftGrip handle and the tool-free blade change make it an uncomplicated all-rounder — usable anywhere, intuitive to operate and independently certified by the GS mark. As a martor product, the KM3550 replacement blade head is available worldwide from specialist retailers.

Further features

Safety

Without snap-off segments

Continuous blade without predetermined breaking points, no risk of a segment breaking off uncontrolled.

Handle & ergonomics

Ergonomic design

The handle shape is designed around the hand position when cutting and reduces fatigue with repeated use.

SoftGrip

Reduces fatigue over long shifts thanks to grippy, padded zones.

Left- and right-handed

Can be used with either hand, with or without conversion depending on the model, equally suitable for left- and right-handed users.

Weight < 50 g

Feather-light, barely noticeable when carried all day, for example on a belt or in the hand. This model weighs 37 g.

Blade

Premium carbon steel

Refined alloy with even better edge retention, for particularly demanding continuous use.

Uncoated

Constant basic sharpness without coating wear, cost-efficient and proven. The most economical choice for standard applications.

Normal initial sharpness

Solid basic sharpness from the first cut, entirely sufficient for everyday use.

Normal edge life

Usual service life until the blade is changed, in line with the market standard for this type of blade.

Special features

Tape slitter

Integrated blade for opening adhesive tape in a targeted way, without having to use the main blade for it.

Tool-free blade change

Insert a new blade without tools, done in seconds.

Eyelet

For attaching to a belt, carabiner or lanyard so the knife stays within easy reach.

Knife type: safety knife

Safety knives are designed for continuous professional use — usually with an automatic or manual blade guard that prevents cuts when the knife is not in use. The standard choice in logistics, retail and production.

Technical data

Safety level: Level 3 (highest category)
Handle material: GRP + SoftGrip
Blade type: KM3550
Max. cutting depth (mm): 6
Blade change: Yes - tool-free
Suitable for left-handed users: Yes
Eyelet: Yes
Dimensions (L×W×H) mm: 154 × 12 × 40
Weight (g): 37
Packaging unit: 1 per carton
Certificate: GS
Article number: UM350001

Weight 37 g

Featherweight Pro Heavy

Size

Mini Standard Very large

Downloads & blade change

Technical documents and safety information for the martor Secumax 350 are available to download. The product data sheet contains complete specifications, and the flyer gives a concise overview for procurement. The blade change is explained step by step — for safe and correct handling.

UM350001 Flyer

Features, applications and technical data at a glance.

Download →

UM350001 Technical data sheet

Technical data, blade change instructions and safety notes – DIN A4

Download →

Blade change – how it works

1 Take the knife out of use and put it down safely.
2 Press both side release buttons on the handle body at the same time and hold them down.
3 Push the KM3550 blade head out towards the front.
4 For the second usable side: turn the blade head over by 180° and reinsert it.
5 Or: insert a new blade head and let it click into place — no tools required.
6 Check that the blade is seated correctly — the head must be firmly and securely locked.
7 Dispose of dull blade heads in a collection box — never touch them with bare hands.

Replacement blades

The martor Secumax 350 uses only the proprietary KM3550 blade head — compatible with no other blade system. The blade head is usable on both sides and delivers approx. 1,200 cuts per piece. You will find all available replacement blades in the overview of all cutter knife blades.

concealed blade for Secumax 350Carbon steel bladeOvermoulded with plastic8.18€ net

View KM3550

Alternatives

Not the right one? The range includes more safety level 3 BoxCutters with blade change — depending on your requirements for cutting performance, ergonomics and features. The CB100 offers outstanding edge life, the Klever XChange a blade usable on both sides. The choice depends on the volume of use and your priorities.

View all safety level 3 knives →

Accessories

Matching accessories for the safe and efficient use of the martor Secumax 350 — from the collection box for dull blade heads to the holster for safe carrying on the belt. Lanyards and cutting rulers complete the setup for professional cutting work in logistics and retail.

Blade boxes

for dull blades
special closure
in 4 sizes

Choose

Lanyards

“lanyard”
extra strong
up to 120 cm long

Choose

Cutting rulers

with steel edge
high quality
with finger guard

Choose

Belt pouches

knife pouch
in 3 sizes
reinforced seams

Choose

Frequently asked questions

Frequently asked questions about the martor Secumax 350 — from correct handling to the right area of use. If you want to know more about the KM3550 blade system, suitability for left-handed users or the safety level, you will find the answers here. The C-URT team is happy to provide further information.

How do I change the blade head on the Secumax 350?

On the martor Secumax 350 you change the blade without tools: press both release buttons on the handle, push out the old KM3550 blade head, insert a new head and let it click into place. A replacement blade is already included in the scope of delivery — no separate purchase is needed for the first change. Dispose of dull heads in a collection box.

Which replacement blades fit the martor Secumax 350?

The Secumax 350 uses only the proprietary KM3550 blade head — other blade heads are not compatible. The KM3550 is available in a pack of 10 for €8.81. Each blade head is usable on both sides, which doubles the effective edge life to approx. 1,200 cuts per head.

Is the Secumax 350 suitable for left-handed users?

Yes — the martor Secumax 350 is suitable for left- and right-handed users without conversion and without tools. The design can be operated directly from both sides. There is no preferred hand — the knife works identically in both hands.

What does safety level 3 mean on the Secumax 350?

Safety level 3 means: the blade is not exposed at any time. The KM3550 protective-hook blade head completely conceals the cutting edge — during cutting, in the rest position and during transport. This is the highest safety class in the BoxCutter segment and protects reliably against unintended cut injuries.

Which cutting tasks is the Secumax 350 suited to?

The Secumax 350 is an all-rounder for logistics and retail: corrugated board, adhesive tape, stretch film, strapping, films, sacks and cords. The cutting depth of 6 mm is designed for standard materials. For deep cuts in very thick material, a specialised knife may be more sensible.

Notes

MARTOR KG – Lindgesfeld 28 – 42653 Solingen – info@martor.de
View all Martor products →
Contact in the EU:
MARTOR KG – Lindgesfeld 28 – 42653 Solingen – info@martor.de

Safety notice

This knife is a sharp working tool. Use only as intended. Keep out of the reach of children. Wear suitable protective gloves if necessary. Replace blades safely in accordance with the blade change instructions – do not make any improper modifications.