{"id":4493,"date":"2026-09-01T16:11:45","date_gmt":"2026-09-01T08:11:45","guid":{"rendered":"https:\/\/www.baler-machines.com\/?post_type=info&#038;p=4493"},"modified":"2026-09-01T16:18:01","modified_gmt":"2026-09-01T08:18:01","slug":"dual-shaft-cardboard-shredder-machine-tunisia","status":"publish","type":"info","link":"https:\/\/www.baler-machines.com\/sw\/dual-shaft-cardboard-shredder-machine-tunisia\/","title":{"rendered":"Dual Shaft Cardboard Shredder Machine in Tunisia for 1-2cm Output"},"content":{"rendered":"<p class=\"wp-block-paragraph\">A Tunisian cardboard recycling operation ordered a dual shaft cardboard shredder machine (Model-400, single-motor compact frame) for processing used shipping cartons and corrugated board into 1-2 cm shredded stock. <\/p>    <p class=\"wp-block-paragraph\"> This case documents the dual shaft shredder selection logic for cardboard, the dense-blade 1-2 cm output, the discharge ramp design, and the Mediterranean shipping route for Tunisian buyers.<\/p>    <figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\"> <figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"540\" data-id=\"4494\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/Dual-Shaft-Cardboard-Shredder-Machine.webp\" alt=\"Dual Shaft Cardboard Shredder Machine\" class=\"wp-image-4494\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/Dual-Shaft-Cardboard-Shredder-Machine.webp 720w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/Dual-Shaft-Cardboard-Shredder-Machine-16x12.webp 16w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Dual Shaft Cardboard Shredder Machine<\/figcaption><\/figure>    <figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"540\" data-id=\"4495\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/two-shaft-shredding-machine-for-sale.webp\" alt=\"two shaft shredding machine for sale\" class=\"wp-image-4495\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/two-shaft-shredding-machine-for-sale.webp 720w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/two-shaft-shredding-machine-for-sale-16x12.webp 16w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Two Shaft Shredding Machine For Sale<\/figcaption><\/figure> <\/figure>    <h2 class=\"wp-block-heading\"><strong>Customer Background: Tunisian Cardboard Recycling Operation<\/strong><\/h2>    <p class=\"wp-block-paragraph\">A small-to-mid cardboard recycler in the greater Tunis area processes 3-4 tons of mixed corrugated cardboard per day, feeding the shredded output directly into a cardboard baler for 200-300 kg bales. <\/p>    <p class=\"wp-block-paragraph\">The SL-400 frame with 300 kg\/h throughput matches the daily target without oversizing. A larger 600 or 800 dual-shaft shredder would deliver 800-1,500 kg\/h, but at 4-6\u00d7 the price and 50% higher power draw\u2014the customer did not need that headroom.<\/p>    <h2 class=\"wp-block-heading\"><strong>Why a Dual Shaft Shredder Is the Right Design for Cardboard<\/strong><\/h2>    <p class=\"wp-block-paragraph\">For the Tunisian customer&#8217;s application\u2014mixed double-wall corrugated boxes, single-wall cereal cartons, and packaging offcuts\u2014the dual-shaft design offers three practical advantages:<\/p>    <ul class=\"wp-block-list\"> <li><strong>Tear, don&#8217;t slice<\/strong>: Hook blades grab the cardboard and pull it into the cutting gap. Slicing (single-shaft) would require a much higher motor to push a sharp blade through compressed corrugated layers; tearing (dual-shaft) uses 40-60% less energy per kg.<\/li>    <li><strong>Handles staples and tape<\/strong>: Real-world cardboard includes staples, plastic tape, and labels. The dual-shaft hook design bends staples flat and pulls them out of the cut stream rather than snagging on a bed screen (the failure point of single-shaft shredders on contaminated cardboard).<\/li>    <li><strong>Lower RPM, lower noise<\/strong>: 15-30 RPM shaft speed runs 60-70 dB, suitable for indoor Tunisian recycling yards near residential areas. Single-shaft shredders run 400-800 RPM and produce 85-95 dB, requiring outdoor siting and hearing protection.<\/li> <\/ul>    <p class=\"wp-block-paragraph\">The dual-shaft shredders produce irregular 1-2 cm strips, actually preferred because it compacts more tightly than uniform cubes.<\/p>   <div class=\"wp-block-image\"> <figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"719\" height=\"540\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/model-400-shredder-for-cardboard.webp\" alt=\"model-400 shredder for cardboard\" class=\"wp-image-4496\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/model-400-shredder-for-cardboard.webp 719w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/model-400-shredder-for-cardboard-16x12.webp 16w\" sizes=\"auto, (max-width: 719px) 100vw, 719px\" \/><figcaption class=\"wp-element-caption\">model-400 shredder for cardboard<\/figcaption><\/figure> <\/div>   <h2 class=\"wp-block-heading\"><strong>What Are the Model-400 Cardboard Shredder Machine Specifications?<\/strong><\/h2>    <p class=\"wp-block-paragraph\">Specifications of the cardboard shredder machine for the Tunisian customer:<\/p>    <figure class=\"wp-block-table\"><table><tbody><tr><th>Kigezo<\/th><th>Vipimo<\/th><\/tr><tr><td>Mfano<\/td><td>Model-400 dual shaft cardboard shredder (single-motor compact frame)<\/td><\/tr><tr><td>Shaft configuration<\/td><td>Two counter-rotating shafts, 15-30 RPM, hook-blade design<\/td><\/tr><tr><td>Nguvu ya magari<\/td><td>11 kW (single motor + gearbox to both shafts)<\/td><\/tr><tr><td>Uwezo<\/td><td>300 kg\/h (cardboard)<\/td><\/tr><tr><td>Blade diameter<\/td><td>200 mm<\/td><\/tr><tr><td>Unene wa blade<\/td><td>20 mm<\/td><\/tr><tr><td>Nyenzo za blade<\/td><td>9CrSi (silicon-chrome tool steel, HRC 55-58)<\/td><\/tr><tr><td>Knife quantity<\/td><td>20 pieces (10 per shaft, dense interlocking arrangement)<\/td><\/tr><tr><td>Output size<\/td><td>1-2 cm (customer-specified)<\/td><\/tr><tr><td>Net weight<\/td><td>1,000 kg<\/td><\/tr><tr><td>Power supply<\/td><td>380V \/ 50Hz \/ 3-phase<\/td><\/tr><tr><td>Drive configuration<\/td><td>Single motor + gearbox to both shafts (compact 400 frame)<\/td><\/tr><tr><td>Utekelezaji<\/td><td>Gravity-fed discharge ramp (30-35\u00b0 angle)<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Model-400 dual shaft cardboard shredder machine specifications for the Tunisian customer<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">Three specs matter for Tunisian site work: 11 kW (compatible with standard 3-phase Tunisian grid), 300 kg\/h (matches 3-4 t\/day intake), 1000 kg (one-ton forklift portable, fits 20GP container).<\/p>   <div class=\"wp-block-image\"> <figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"540\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/newly-made-double-shaft-shredder.webp\" alt=\"newly-made double shaft shredder\" class=\"wp-image-4502\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/newly-made-double-shaft-shredder.webp 720w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/newly-made-double-shaft-shredder-16x12.webp 16w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">newly-made double shaft shredder<\/figcaption><\/figure> <\/div>   <h2 class=\"wp-block-heading\"><strong>Why a 400 Frame (Single Motor) Instead of a 400+ Dual-Motor Model?<\/strong><\/h2>    <p class=\"wp-block-paragraph translation-block\">Both are <strong>dual shaft cardboard shredders<\/strong>, but the drive configuration differs. The 400 frame uses a <strong>single motor + gearbox to both shafts<\/strong>; the 400+ frame uses <strong>two motors (one per shaft)<\/strong>. The split matters for buyers below 5 tons\/day:<\/p>    <figure class=\"wp-block-table\"><table><tbody><tr><th>Factor<\/th><th>Model-400 Dual Shaft (Single Motor)<\/th><th>Model-400+ Dual Shaft (Dual Motor)<\/th><\/tr><tr><td>Shaft configuration<\/td><td>2 shafts, 1 motor + gearbox<\/td><td>2 shafts, 2 dedicated motors<\/td><\/tr><tr><td>Motor configuration<\/td><td>1 \u00d7 11 kW motor + gearbox<\/td><td>2 \u00d7 7.5-11 kW motors (one per shaft)<\/td><\/tr><tr><td>Jumla ya nguvu<\/td><td>11 kW<\/td><td>15-22 kW<\/td><\/tr><tr><td>Capacity (cardboard)<\/td><td>300-400 kg\/h<\/td><td>500-800 kg\/h<\/td><\/tr><tr><td>Power consumption per ton<\/td><td>~36 kWh\/ton<\/td><td>~30 kWh\/ton (but at higher throughput)<\/td><\/tr><tr><td>Uzito<\/td><td>1,000 kg<\/td><td>1,400-1,800 kg<\/td><\/tr><tr><td>Alama ya kompakt<\/td><td>Compact (1.6 \u00d7 0.8 m)<\/td><td>Larger (2.0 \u00d7 1.0 m)<\/td><\/tr><tr><td>Best for<\/td><td>3-5 t\/day intake (Tunisian customer)<\/td><td>8-15 t\/day intake<\/td><\/tr><tr><td>Price tier<\/td><td>USD 4,500-6,500<\/td><td>USD 8,000-12,000<\/td><\/tr><\/tbody><\/table><figcaption class=\"wp-element-caption\">Model-400 single-motor vs Model-400+ dual-motor dual shaft cardboard shredder comparison<\/figcaption><\/figure>    <p class=\"wp-block-paragraph\">For the Tunisian customer, the single-motor dual shaft cardboard shredder machine SL-400 frame hits the 3-4 t\/day target at half the capital cost of the 400+ dual-motor. The gearbox-driven design is a proven 15-year-old platform; the dual-motor 400+ is a newer 5-year design optimized for high-throughput plants.<\/p>    <h2 class=\"wp-block-heading\"><strong>How Does a 1-2 cm Output Work? (Dense 20-Knife Dual Shaft Configuration)<\/strong><\/h2>    <p class=\"wp-block-paragraph\">The customer specified 1-2 cm output\u2014fine enough to feed directly into a cardboard baler without secondary crushing, but not so fine that the machine becomes a grinder (which would overheat on cardboard dust). <\/p>    <p class=\"wp-block-paragraph translation-block\">The dual shaft cardboard shredder machine Model-400 achieves this through a <strong>dense 20-knife configuration<\/strong>: 10 hook blades on each of the two counter-rotating shafts, 200 mm diameter, arranged with tight spacing so the hooks interlock and produce a narrow cut gap on each rotation.<\/p>    <h2 class=\"wp-block-heading\"><strong>Why the Discharge Ramp Matters for Cardboard Shredding<\/strong><\/h2>    <p class=\"wp-block-paragraph\">Cardboard shredded to 1-2 cm is light and fluffy\u2014often 30-40 kg per cubic meter. Without a discharge ramp, the shredded stock accumulates, forcing the operator to stop and clear the jam every 15-20 minutes. The 30-35\u00b0 discharge ramp solves this by using gravity to slide the shredded stock out of the chamber and into a collection bin or onto a conveyor below.<\/p>    <p class=\"wp-block-paragraph\">The customer opted for the standard 30-35\u00b0 ramp. The standard ramp keeps the unit footprint compact (1.6 \u00d7 0.8 m) and eliminates a moving part that could fail. For a 3-4 t\/day Tunisian operation, the simple ramp is the right choice.<\/p>    <h2 class=\"wp-block-heading\"><strong>Shipping to Tunisia: Mediterranean Port Logistics<\/strong><\/h2>    <p class=\"wp-block-paragraph\">The unit ships from our factory in China to the customer&#8217;s recycling yard in greater Tunis via Mediterranean sea freight.<\/p>    <ul class=\"wp-block-list\"> <li><strong>Step 1 \u2014 Factory to export port<\/strong>: 1-2 days domestic trucking. Plywood case (3.5 m\u00b3, ~1,050 kg packed).<\/li>    <li><strong>Step 2 \u2014 Sea freight (Shanghai \u2192 Rad\u00e8s via Malta transshipment)<\/strong>: 22-28 days. Direct call or transshipment via Malta or Algeciras depending on the carrier.<\/li>    <li><strong>Step 3 \u2014 Tunisian customs clearance<\/strong>: 3-5 days. The customer works with a local freight forwarder (typically based in Rad\u00e8s or La Goulette) for import duties and TVA (Tunisia&#8217;s 19% VAT).<\/li>    <li><strong>Step 4 \u2014 Inland delivery<\/strong>: Trucking from Rad\u00e8s to the recycling yard, typically 1-3 days depending on the exact location in Tunis, Sousse, or Sfax.<\/li> <\/ul>    <p class=\"wp-block-paragraph\">Total door-to-door transit: 28-40 days.<\/p>    <figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-2 is-layout-flex wp-block-gallery-is-layout-flex\"> <figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"405\" data-id=\"4500\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/dual-shaft-cardboard-shredder-machine-package.webp\" alt=\"dual shaft cardboard shredder machine package\" class=\"wp-image-4500\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/dual-shaft-cardboard-shredder-machine-package.webp 720w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/dual-shaft-cardboard-shredder-machine-package-18x10.webp 18w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Dual Shaft Cardboard Shredder Machine Package<\/figcaption><\/figure>    <figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"720\" height=\"405\" data-id=\"4501\" src=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/packing-shredder-for-delivery.webp\" alt=\"packing shredder for delivery\" class=\"wp-image-4501\" title=\"\" srcset=\"https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/packing-shredder-for-delivery.webp 720w, https:\/\/www.baler-machines.com\/wp-content\/uploads\/2026\/09\/packing-shredder-for-delivery-18x10.webp 18w\" sizes=\"auto, (max-width: 720px) 100vw, 720px\" \/><figcaption class=\"wp-element-caption\">Packing Shredder For Delivery<\/figcaption><\/figure> <\/figure>    <h2 class=\"wp-block-heading\"><strong>Order a Cardboard Shredder Machine for Your Recycling Operation<\/strong><\/h2>    <p class=\"wp-block-paragraph\">For a dual shaft cardboard shredder machine configured to your daily intake, output size, and grid voltage, contact our engineering team.  <\/p>    <p class=\"wp-block-paragraph\">We ship globally on FOB, CIF, or DDP terms. Most quotes are returned within 24 hours.<\/p>    <p class=\"wp-block-paragraph translation-block\">If you want to know more about double shaft shredder for cardboard, please read: <a href=\"https:\/\/www.baler-machines.com\/sw\/cardboard-box-shredder\/\">All-purpose Cardboard Box Shredder Machine<\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Tunisian cardboard recycler ordered a Model-400 dual shaft cardboard shredder machine (11kW, 300 kg\/h, 200mm 9CrSi blades, 20 knives, 1-2cm output, 1000kg, 380V\/50Hz). Includes discharge ramp. Ship via Mediterranean to Rad\u00e8s port.<\/p>","protected":false},"author":1,"featured_media":4494,"parent":0,"template":"","tags":[668,664,671,674,672,666,667,665,581,673,632,670,669],"info-type":[565],"class_list":["post-4493","info","type-info","status-publish","has-post-thumbnail","hentry","tag-box-shredder","tag-cardboard","tag-cardboard-box-shredder-for-recycling","tag-cardboard-recycling-equipment","tag-cardboard-shredder","tag-cardboard-shredder-machine","tag-carton-shredder","tag-dual-shaft-cardboard-shredder","tag-dual-shaft-shredder","tag-industrial-cardboard-shredder","tag-shredder","tag-small-shredder-machine","tag-tunisia-customer-case","info-type-cases"],"_links":{"self":[{"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/info\/4493","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/info"}],"about":[{"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/types\/info"}],"author":[{"embeddable":true,"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/media\/4494"}],"wp:attachment":[{"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/media?parent=4493"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/tags?post=4493"},{"taxonomy":"info-type","embeddable":true,"href":"https:\/\/www.baler-machines.com\/sw\/wp-json\/wp\/v2\/info-type?post=4493"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}