High-speed male-female buckle production for nailless interlock plywood boxes — 32 buckles/min with 20 m/min panel feeding. Siemens ST40 PLC + Yaskawa (Japan) servo + Pepperl+Fuchs sensors + premium hydraulic stack.

SF3204 DOUBLE-MOLD STEEL STRIP BUCKLE MACHINE — Male + Female in One Cycle · 32 Buckles/min · Yaskawa Servo
Produce the male and female buckles that lock nailless interlock plywood boxes shut — high-speed double-mold action, Siemens control, Yaskawa servo precision and a premium 4-brand hydraulic + sensor stack.
Siemens ST40 PLC + 5.7" touchscreen · Yaskawa (Japan) servo · Pepperl+Fuchs (Germany) sensors ×4 · Schneider electrics · Hydromax + YUKEN + Shenyu hydraulic system · HICAS auto decoiler.
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|
Parameter |
Specification |
|
Model |
SF3204 (double-mold steel strip buckle machine) |
|
Application |
Male + female buckle production for nailless interlock plywood boxes |
|
Max input power |
6 kW |
|
Voltage |
380V / 50Hz / 3-phase |
|
Panel feeding speed |
20 m/min |
|
Productivity |
32 buckles/min |
|
Steel strip (SGCC) |
50 × 0.7 mm (tolerance ±0.05 mm) |
|
Plywood thickness |
5 – 10 mm (9 mm buckle tooth engagement) |
|
Drive |
Hydraulic double-mold |
|
PLC |
Siemens ST40 (with high-speed terminals) |
|
Display |
Siemens 5.7" touchscreen |
|
Servo motors |
Yaskawa (Japan) |
|
Sensors |
Pepperl+Fuchs (Germany) × 4 pcs |
|
Electrical components |
Schneider Electric |
|
Pneumatic components |
AirTac |
|
Hydraulic pump |
Hydromax (Taiwan) |
|
Hydraulic valves |
YUKEN (Japan) |
|
Hydraulic motor |
Shenyu (Taiwan) |
|
Reducer |
Industrial-grade reducer |
|
Auto decoiler |
HICAS auto decoiler (max loading 500 kg) |
|
Machine weight |
~1,200 kg |
|
Machine dimensions |
2,750 × 1,150 × 1,500 mm |
|
Interface languages |
English, Chinese, Russian, Spanish |
|
Certification |
CE certified · ISO9001 |
|
Service life |
10 – 15 years (industrial-grade build) |
|
Warranty |
12 months (core components) |
SF3204 sits alongside SF3302 in the HICAS nailless plywood box product family:
Both machines run on Siemens PLC + Yaskawa servo + Hydromax/YUKEN hydraulic architecture — a consistent premium component stack across the nailless-box product family. Together they support producers of nailless, foldable interlock plywood boxes — the growing standard in premium export packaging for machinery, electronics, chemicals and glass.
1.MALE + FEMALE DOUBLE-MOLD: One cycle produces both male and female buckles for nailless interlock plywood boxes — dedicated machine for the interlock-box standard, not a generic buckle press.
2.32 BUCKLES/MIN + 20 M/MIN FEEDING: The throughput end of the nailless-box buckle range, driven by a hydraulic double-mold and Yaskawa servo feeding.
3.SIEMENS ST40 PLC + HIGH-SPEED TERMINALS: Not a generic PLC — the ST40 module is Siemens' high-speed input/output series, sized for real-time buckle-cycle control at 32 cycles/minute.
4.YASKAWA (JAPAN) SERVO: Japanese Yaskawa servo drives the buckle stamping and feeding cycles — the same premium servo brand European premium machine builders specify.
5.PEPPERL+FUCHS 4-SENSOR STACK: 4 × Pepperl+Fuchs (Germany) precision sensors drive accurate position detection at every stage — top-tier industrial sensing.
6.PREMIUM HYDRAULIC STACK: Taiwan Hydromax pump + Japan YUKEN valves + Taiwan Shenyu motor — the same industrial-grade hydraulic system used on SF3302.
7.10-15 YEAR SERVICE LIFE: Built as heavy industrial equipment, not a consumable — sized for a decade-plus of continuous shift production.
8.BUILT FOR THE NAILLESS-BOX SUPPLY CHAIN: Purpose-built to feed the buckle needs of nailless-interlock-plywood-box producers.


Recent SF3204 installations include Mexico and the United Kingdom — with HICAS wood-packaging machinery field-proven in 150+ countries across diverse export-packaging environments.
Buying buckles from external suppliers ties nailless-box producers to variable cost and lead times. SF3204 lets you produce your own male + female buckles in-house at 32/min — with Yaskawa servo precision and Pepperl+Fuchs sensing.
|
Item |
Buying Buckles / Manual |
HICAS SF3204 |
|
Buckle supply |
External, variable |
In-house, controlled |
|
Male + female cycle |
Two separate purchases |
Both in one cycle (double-mold) |
|
Output |
Depends on supplier |
32 buckles/min continuous |
|
Cycle control |
Not applicable |
Siemens ST40 high-speed PLC |
|
Servo |
Not applicable |
Yaskawa (Japan) |
|
Sensing |
Basic / none |
4 × Pepperl+Fuchs (Germany) |
|
Component quality |
Mixed |
Premium 4-brand stack |
|
Service life |
Depends on supplier |
10-15 years designed |
What this means for you:
We don't publish equipment prices because configuration affects final cost. Customized quotation within 24 hours.
[ Request Customized Quotation ]





Q: What does the SF3204 do?
A: It produces male and female buckles from SGCC steel strip — the buckles used to lock nailless interlock plywood boxes shut after the box is folded. The double-mold design produces both male and female buckles in the same cycle.
Q: How fast is it?
A: 32 buckles per minute, with 20 m/min panel feeding.
Q: What steel strip and plywood does it use?
A: SGCC steel strip 50 × 0.7 mm (tolerance ±0.05 mm), for plywood 5-10 mm thick (9 mm buckle tooth engagement).
Q: What control system does it use?
A: Siemens ST40 PLC with high-speed input/output terminals, and a Siemens 5.7" touchscreen — sized for real-time control at 32 cycles/minute.
Q: What servo and sensors are fitted?
A: Yaskawa (Japan) servo and 4 × Pepperl+Fuchs (Germany) precision sensors — a premium Japanese-servo + German-sensor stack.
Q: What hydraulic system does it use?
A: Taiwan Hydromax pump + Japan YUKEN valves + Taiwan Shenyu motor — an industrial-grade hydraulic stack, the same used on SF3302.
Q: How does SF3204 fit with SF3302?
A: SF3302 produces the long steel-strip frames; SF3204 produces the male + female buckles that lock the box shut. Together they support the full nailless-plywood-box supply chain, with a consistent Siemens + Yaskawa premium component stack.
Q: What voltage does it use?
A: Standard 380V / 50Hz / 3-phase, configurable to your market.
Q: How long is the service life?
A: Designed for 10-15 years of continuous shift production — real industrial equipment, not a consumable.
Q: Can the interface be set to my language?
A: Yes — the system supports English, Chinese, Russian and Spanish as standard.
Q: What payment terms do you accept?
A: 30% T/T deposit, LC at sight, and SINOSURE export credit insurance.
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